Conventional piles are metal tubes having either a circular or a rectangular cross-section. Such piles are mounted in the ground to provide a support structure for the construction of superstructures. The piles are provided in sections that are driven into the ground.
An example of a conventional pile is illustrated in
As illustrated in
The leading edge 114 of helical blade 112 cuts into the soil (medium) as the pile is rotated into the soil (medium) at such contact point. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) passes over helical blade 112 and thereafter past trailing edge 116. The uppermost portion of helical blade 112 includes a deformation structure 120 that displaces the soil (medium) to create irregularities in an annulus formed by a lateral compaction element 119.
It is noted that some conventional piles have a cutting tip that permits them to be rapidly deployed. By rotating the pile, the helical blade pulls the pile into the ground (medium), thus greatly reducing the amount of downward force necessary to bury the pile. Unfortunately, the rotary action of the pile also loosens the soil which holds the pile in place. This reduces the amount of vertical support the pile provides.
Sometimes, grout or other supporting medium is introduced around the pile in an attempt to solidify the volume around the pile and thus compensate for the loose soil. In addition, to providing grout to the area around the pile, the grout, to be effective, needs to be able to grip or have a frictional contact with the pile to prevent any slippage between the grout and the pile, thereby strengthening the vertical support the pile provides.
U.S. Pat. No. 6,817,810 discloses a helical pile that includes a shaft with rounded notches laid out in a precise non-random pattern to facilitate a helical plate to be screwed onto the shaft.
The rounded notches are only on the extreme corners of the square shaft and thereby the rounded notches do not provide a substantial resistance to shear in the supporting medium or grout that may be added to the bore hole. Moreover, the rounded nature of the notches on the shaft does not provide gripping or frictional contact with the grout to prevent slippage between the grout and the pile.
Additionally, the very small area of the notches on the shaft does not provide gripping or frictional contact with the supporting medium or grout to prevent any slippage between the supporting medium or grout and the pile.
In various situations, piles are not driven down very far into the soil (medium) because the piles are not required to support a large vertical weight or force. These piles, depending on the environment, may be driven to a depth wherein the pile can be forced or pull upwardly by the surrounding soil (medium) during times of frost or freezing temperature (frost upheaval).
Moreover, during times of frost, the upward pulling force of the surrounding soil (medium) can cause the grout surrounding the pile to rise, thereby impacting the lateral strength that the grout is supposed to provide to the pile.
Conventional piles fail to compensate for the potential upheaval, thereby causing the conventional piles to be pulled or forced upwardly out of the surrounding soil (medium).
Additionally, conventional piles fail to compensate for the potential upheaval, thereby causing the surrounding grout to be pulled or forced upwardly, thereby impacting the lateral strength that the grout is supposed to provide to the pile.
Therefore, it is desirable to provide a pile that is configured to reduce or eliminate the pulling or forcing upwardly of the pile out of the surrounding soil (medium).
Additionally, it is desirable to provide a pile that is configured to reduce or eliminate the pulling or forcing upwardly of the surrounding grout.
Also, it is desirable to provide a pile that is configured to resist the pulling or forcing upwardly of the pile out of the surrounding soil (medium).
Furthermore, it is desirable to provide a pile that is configured to resist the pulling or forcing upwardly of the surrounding grout.
Additionally, it is desirable to provide a sleeve for a shaft of a pile that is configured to reduce or eliminate the pulling or forcing upwardly of the pile out of the surrounding soil (medium).
Moreover, it is desirable to provide a plate that is configured to reduce or eliminate the pulling or forcing upwardly of the surrounding grout.
It is also desirable to provide a plate that is configured to resist the pulling or forcing upwardly of the surrounding grout.
It is desirable to provide a sleeve for a shaft of a pile that is configured to resist the pulling or forcing upwardly of the pile out of the surrounding soil (medium).
It is further desirable to provide a sleeve for a shaft of a pile that is configured to resist the pulling or forcing upwardly of the pile out of the surrounding soil (medium) and configured to resist the pulling or forcing upwardly of the surrounding grout
Lastly, it is desirable to provide a sleeve for a shaft of a pile that is configured to reduce or eliminate the pulling or forcing upwardly of the pile out of the surrounding soil (medium) and configured to reduce or eliminate the pulling or forcing upwardly of the surrounding grout.
The drawings are only for purposes of illustrating various embodiments and are not to be construed as limiting, wherein:
For a general understanding, reference is made to the drawings. In the drawings, like references have been used throughout to designate identical or equivalent elements. It is also noted that the drawings may not have been drawn to scale and that certain regions may have been purposely drawn disproportionately so that the features and concepts may be properly illustrated.
An example of a pile for providing gripping contact with a supporting medium or grout and resisting the supporting medium or grout from shearing is illustrated in
As illustrated in
It is noted that the threaded shaft 300 may be realized by including a single continuous raised helical thread (rib) on the outer surface of the shaft or a single continuous helical channel on the outer surface of the shaft. It is further noted that the threaded shaft 300 may be realized by including a plurality of non-helical parallel deformations, each non-helical parallel deformations encircling the entire outer surface of the shaft. It is additionally noted that the threaded shaft 300 may be realized by including a plurality of non-helical parallel raised rings, each raised ring encircling the entire outer surface of the shaft. It is also noted that the threaded shaft 300 may be realized by including a plurality of non-helical parallel ringed channels, each ringed channel encircling the entire outer surface of the shaft.
A non-helical parallel deformation, a non-helical parallel raised ring, and/or a non-helical parallel ringed channel, as used in describing the threaded shaft 300, form a plane, wherein the plane, formed by the non-helical parallel deformation, non-helical parallel raised ring, and/or non-helical parallel ringed channel, is orthogonal, in two dimensions, to a central axis of the threaded shaft 300. On the other hand, a helical deformation (continuous raised helical thread or continuous helical channel), as used in describing the threaded shaft 300, forms a plane, wherein the plane, formed by the helical deformation (continuous raised helical thread or continuous helical channel), is not orthogonal, in two dimension, to a central axis of the threaded shaft 300.
The leading edge 114 of helical blade 112 cuts into the soil (medium) as the pile 100 is rotated. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) passes over helical blade 112 and thereafter past trailing edge 116. As the soil (medium) passes over helical blade 112, the soil (medium) is laterally compacted by lateral compaction elements 119 (lateral compaction elements 200 are discussed in more detail below with respect to
The uppermost portion of helical blade 112 may include a deformation structure 120 (located near the trailing edge 116) that displaces the soil (medium) to create a spiral groove in the outer wall 500 of the annulus.
After the pile 100 is driven into position, supporting medium or grout (not shown) may be introduced into the void 510 of the annulus. The supporting medium or grout can be introduced by means of gravity or pressure into the void 510 of the annulus.
Additionally, since the pile 100 may be a hollow tube, the supporting medium or grout can be introduced into the void 510 of the annulus through the hollow tube by means of gravity or pressure, wherein the pile 100 would include openings (not shown) that allows the supporting medium or grout to leave the pile and enter into the void 510 of the annulus.
The introduced supporting medium or grout surrounds the threaded shaft 300 of the pile 100. The threaded surface of the threaded shaft 300 of the pile 100 provides a gripping interface between the supporting medium or grout and the pile 100, as well as, provides an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the pile 100.
Another example of a pile for providing gripping contact with the supporting medium or grout and resisting the supporting medium or grout from shearing is illustrated in
As illustrated in
Preferably, the projections (protrusions) 410 increase the area of the skin resistance with the supporting medium or grout to resist the grout from shearing along the surface between the supporting medium or grout and the shaft 400.
A bottom section of the pile 100 includes a soil (medium) displacement head 108. Soil (medium) displacement head 108 has a helical blade 112 that has a leading edge 114 and a trailing edge 116.
The leading edge 114 of helical blade 112 cuts into the soil (medium) as the pile 100 is rotated. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) passes over helical blade 112 and thereafter past trailing edge 116. As the soil (medium) passes over helical blade 112, the soil (medium) is laterally compacted by lateral compaction elements 119 (discussed in more detail below). The lateral compaction elements 119 create an annulus having outer wall 500 and void 510.
The uppermost portion of helical blade 112 may include a deformation structure 120 that displaces the soil (medium) to create a spiral groove in the outer wall 500 of the annulus.
After the pile 100 is driven into position, supporting medium or grout (not shown) may be introduced into the void 510 of the annulus. The supporting medium or grout can be introduced by means of gravity or pressure into the void 510 of the annulus.
Additionally, since the pile 100 may be a hollow tube, the supporting medium or grout can be introduced into the void 510 of the annulus through the hollow tube by means of gravity or pressure, wherein the pile 100 would include openings (not shown) that allows the supporting medium or grout to leave the pile and enter into the void 510 of the annulus.
The introduced supporting medium or grout surrounds the projections (protrusions) 410 of the shaft 400. The projections (protrusions) 410 of the shaft 400 provide gripping interface between the supporting medium or grout and the shaft 400, as well as, provide an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the shaft 400.
A third example of a pile for providing gripping contact with the supporting medium or grout and resisting the supporting medium or grout from shearing is illustrated in
As illustrated in
Preferably, the indentations 420 increase the area of the skin resistance with the supporting medium or grout to resist the supporting medium or grout from shearing along the surface between the supporting medium or grout and the shaft 400.
A bottom section of the pile 100 includes a soil (medium) displacement head 108. Soil (medium) displacement head 108 has a helical blade 112 that has a leading edge 114 and a trailing edge 116.
The leading edge 114 of helical blade 112 cuts into the soil (medium) as the pile 100 is rotated. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) passes over helical blade 112 and thereafter past trailing edge 116. As the soil (medium) passes over helical blade 112, the soil (medium) is laterally compacted by lateral compaction elements 119 (discussed in more detail below). The lateral compaction elements 119 create an annulus having outer wall 500 and void 510.
The uppermost portion of helical blade 112 may include a deformation structure 120 that displaces the soil (medium) to create a spiral groove in the outer wall 500 of the annulus.
After the pile 100 is driven into position, supporting medium or grout (not shown) may be introduced into the void 510 of the annulus. The supporting medium or grout can be introduced by means of gravity or pressure into the void 510 of the annulus.
Additionally, since the pile 100 may be a hollow tube, the supporting medium or grout can be introduced into the void 510 of the annulus through the hollow tube by means of gravity or pressure, wherein the pile 100 would include openings (not shown) that allows the supporting medium or grout to leave the pile and enter into the void 510 of the annulus.
The introduced supporting medium or grout surrounds the indentations 420 of the shaft 400. The indentations 420 of the shaft 400 provide gripping interface between the supporting medium or grout and the shaft 400, as well as, provide an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the shaft 400.
A fourth example of a pile for providing gripping contact with the supporting medium or grout and resisting the supporting medium or grout from shearing is illustrated in
As illustrated in
Preferably, the projections (protrusions) 410 and the indentations 420 increase the area of the skin resistance with the supporting medium or grout to resist the supporting medium or grout from shearing along the surface between the supporting medium or grout and the shaft 400.
A bottom section of the pile 100 includes a soil (medium) displacement head 108. Soil (medium) displacement head 108 has a helical blade 112 that has a leading edge 114 and a trailing edge 116.
The leading edge 114 of helical blade 112 cuts into the soil (medium) as the pile 100 is rotated. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) passes over helical blade 112 and thereafter past trailing edge 116. As the soil (medium) passes over helical blade 112, the soil (medium) is laterally compacted by lateral compaction elements (discussed in more detail below). The lateral compaction elements create an annulus having outer wall 500 and void 510.
The uppermost portion of helical blade 112 may include a deformation structure 120 that displaces the soil (medium) to create a spiral groove in the outer wall 500 of the annulus.
After the pile 100 is driven into position, supporting medium or grout (not shown) may be introduced into the void 510 of the annulus. The supporting medium or grout can be introduced by means of gravity or pressure into the void 510 of the annulus.
Additionally, since the pile 100 may be a hollow tube, the supporting medium or grout can be introduced into the void 510 of the annulus through the hollow tube by means of gravity or pressure, wherein the pile 100 would include openings (not shown) that allows the supporting medium or grout to leave the pile and enter into the void 510 of the annulus.
The introduced supporting medium or grout surrounds the indentations 420 and projections (protrusions) 410 of the shaft 400. The indentations 420 and projections (protrusions) 410 of the shaft 400 provide gripping interface between the supporting medium or grout and the shaft 400, as well as, provide an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the shaft 400.
In this fashion, the soil is laterally compacted by the first lateral compaction element 200, more compacted by the second lateral compaction element 210 (enlarging the diameter of the bored hole) and even more compacted by the third lateral compaction element 220.
The helical blade 112 primarily cuts into the soil and only performs minimal soil compaction. The deformation structure 120 is disposed above the lateral compaction elements (200, 210, and 220). After the widest compaction element 220 has established an annulus with a regular diameter, deformation structure 120 cuts into the edge of the outer wall 500 of the annulus to leave a spiral pattern in the annulus's perimeter or circumference.
It is noted that, as illustrated in
In this fashion, the soil is laterally compacted by the first lateral compaction element 200, more compacted by the second lateral compaction element 210 (enlarging the diameter of the bored hole) and even more compacted by the third lateral compaction element 220.
The helical blade 112 primarily cuts into the soil and only performs minimal soil compaction. The deformation structure 120 is disposed above the lateral compaction elements (200, 210, and 220). After the widest compaction element 200 has established an annulus with a regular diameter, deformation structure 120 cuts into the edge of the outer wall 500 of the annulus to leave a spiral pattern in the annulus's perimeter or circumference.
It is noted that, as illustrated in
The lateral compaction element 200 near the end of the pile has a diameter less than the diameter from the lateral compaction element 220 near deformation structure 120. The lateral compaction element 210 in the middle has a diameter that is between the diameters of the other two lateral compaction elements.
In this fashion, the soil is laterally compacted by the first lateral compaction element 200, more compacted by the second lateral compaction element 210 (enlarging the diameter of the bored hole) and even more compacted by the third lateral compaction element 220.
The helical blade 112 primarily cuts into the soil and only performs minimal soil compaction. The deformation structure 120 is disposed above the lateral compaction elements (200, 210, and 220). After the widest compaction element 200 has established an annulus with a regular diameter, deformation structure 120 cuts into the edge of the outer wall 500 of the annulus to leave a spiral pattern in the annulus's perimeter or circumference.
It is noted that, as illustrated in
The lateral compaction element 200 near the end of the pile has a diameter less than the diameter from the lateral compaction element 220 near deformation structure 120. The lateral compaction element 210 in the middle has a diameter that is between the diameters of the other two lateral compaction elements.
In this fashion, the soil is laterally compacted by the first lateral compaction element 200, more compacted by the second lateral compaction element 210 (enlarging the diameter of the bored hole) and even more compacted by the third lateral compaction element 220.
The helical blade 112 primarily cuts into the soil and only performs minimal soil compaction. The deformation structure 120 is disposed above the lateral compaction elements (200, 210, and 220). After the widest compaction element 200 has established an annulus with a regular diameter, deformation structure 120 cuts into the edge of the outer wall 500 of the annulus to leave a spiral pattern in the annulus's perimeter or circumference.
It is noted that, as illustrated in
It is noted that the threaded shaft 300 may be realized by including a single continuous raised helical thread (rib) on the outer surface of the shaft or a single continuous helical channel on the outer surface of the shaft. It is further noted that the threaded shaft 300 may be realized by including a plurality of raised rings, each raised ring encircling the outer surface of the shaft. It is also noted that the threaded shaft 300 may be realized by including a plurality of ringed channels, each ringed channel encircling the outer surface of the shaft.
The bottom section of the pile also includes a soil (medium) loosen bit or head 600 to loosen the soil (medium) around the pile as the pile is driven therein. The soil (medium) loosen bit or head 600 includes a lateral compaction structure 700 to laterally compact the loosen soil (medium) to create an annulus with an outer wall 500 and a void 510.
The bottom section of the pile also includes a soil (medium) loosen bit or head 600 to loosen the soil (medium) around the pile as the pile is driven therein. The soil (medium) loosen bit or head 600 includes a lateral compaction structure 700 to laterally compact the loosen soil (medium) to create an annulus with an outer wall 500 and a void 510.
The bottom section of the pile also includes a soil (medium) loosen bit or head 600 to loosen the soil (medium) around the pile as the pile is driven therein. The soil (medium) loosen bit or head 600 includes a lateral compaction structure 700 to laterally compact the loosen soil (medium) to create an annulus with an outer wall 500 and a void 510.
The bottom section of the pile also includes a soil (medium) loosen bit or head 600 to loosen the soil (medium) around the pile as the pile is driven therein. The soil (medium) loosen bit or head 600 includes a lateral compaction structure 700 to laterally compact the loosen soil (medium) to create an annulus with an outer wall 500 and a void 510.
The pile 1000 includes a lateral compaction element 1500, located on the elongated, tubular pipe 1100 between the auger 1200 and the blade 1300. The lateral compaction element 1500 laterally compacts the loosen soil (medium) to form an annulus or core.
It is noted that auger 1200 provides a gripping interface between the supporting medium or grout and the shaft 1100, as well as, provide an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the shaft 1100.
The threaded shaft 2100 provides a gripping interface between the supporting medium or grout and the threaded shaft 2100, as well as, provides an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the threaded shaft 2100.
The leading edge of blade 3300 cuts into the soil as the pile 3000 is rotated. The pile 3000 may be equipped with a point 3600 to promote this cutting. The soil passes over blade 3300 and thereafter past trailing edge.
A non-helical parallel deformation, a non-helical parallel raised ring, and/or a non-helical parallel ringed channel, as used in describing the threaded shaft 300, form a plane, wherein the plane, formed by the non-helical parallel deformation, non-helical parallel raised ring, and/or non-helical parallel ringed channel, is orthogonal, in two dimensions, to a central axis of the threaded shaft 300.
On the other hand, a helical deformation (continuous raised helical thread or continuous helical channel), as used in describing the threaded shaft 300, forms a plane, wherein the plane, formed by the helical deformation (continuous raised helical thread or continuous helical channel), is not orthogonal, in two dimension, to a central axis of the threaded shaft 300
The threaded shaft 300 includes helical plates 1020 formed thereon. It is noted that although
The helical plates 1020 formed on the threaded shaft 300 provide resistance to prevent the supporting medium or grout from shearing along the surface between the supporting medium or grout and the threaded shaft 300. The helical plates 1020 formed on the threaded shaft 300 also provide a stronger interface (gripping) between the supporting medium or grout and the threaded shaft 300.
The leading edge 114 of helical blade 112 cuts into the soil (medium) as the pile 100 is rotated. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) passes over helical blade 112 and thereafter past trailing edge 116. As the soil (medium) passes over helical blade 112, the soil (medium) is laterally compacted by lateral compaction elements 119 (lateral compaction elements 200 are discussed in more detail below with respect to
The uppermost portion of helical blade 112 may include a deformation structure 120 (located near the trailing edge 116) that displaces the soil (medium) to create a spiral groove in the outer wall 500 of the annulus.
After the pile 100 is driven into position, supporting medium or grout (not shown) may be introduced into the void 510 of the annulus. The supporting medium or grout can be introduced by means of gravity or pressure into the void 510 of the annulus.
Additionally, since the pile 100 may be a hollow tube, the supporting medium or grout can be introduced into the void 510 of the annulus through the hollow tube by means of gravity or pressure, wherein the pile 100 would include openings (not shown) that allows the supporting medium or grout to leave the pile and enter into the void 510 of the annulus.
The introduced supporting medium or grout surrounds the threaded shaft 300 of the pile 100. The threaded surface of the threaded shaft 300 of the pile 100 provides a gripping interface between the supporting medium or grout and the pile 100, as well as, provides an interface that resists the supporting medium or grout from shearing along the surface between the supporting medium or grout and the pile 100.
The leading edge of helical blade 4300 cuts into the soil (medium) 4200 as the pile 4000 is rotated. The pile 4000 may be equipped with a point 4600 to promote this cutting. The soil (medium) 4200 passes over the helical blade 4300 and thereafter past trailing edge.
As illustrated in
The annulus 4400 may be a column formed by a lateral compaction element (not shown), as described above. Moreover, the annulus 4400 may be a deformed column formed by a lateral compaction element (not shown) and a deformation structure (not shown), as described above.
The pile 4000 further includes a frost sleeve (upheaval resistant sleeve) 4500 that surrounds shaft 4100. The frost sleeve (upheaval resistant sleeve) 4500 may be constructed of PVC, plastic, or metal. The frost sleeve (upheaval resistant sleeve) 4500 is separate from the shaft 4100. In a preferred embodiment, the inside of the frost sleeve (upheaval resistant sleeve) 4500 is covered with grease to make the installation of the frost sleeve (upheaval resistant sleeve) 4500 easier as well as provide a seal between the shaft 4100 and the frost sleeve (upheaval resistant sleeve) 4500.
The frost sleeve (upheaval resistant sleeve) 4500 is configured to provide resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium). The pulling or forcing upwardly of the pile 4000 is due to upheaval forces in the surrounding soil (medium), usually triggered by freezing temperatures or frost.
The length of the frost sleeve (upheaval resistant sleeve) 4500 may be any length to provide the resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium). More specifically, the length of the frost sleeve (upheaval resistant sleeve) 4500 may be long enough to cover the distance between a top of a soil (soil line) and the depth of the frost (frost line) for the area, the depth of the frost being the minimum depth in the area where one would bury a water line to avoid freezing pipes.
In one preferred embodiment, the length of the frost sleeve (upheaval resistant sleeve) 4500 is such that the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below or at the frost line 4250 to the top 4225 of the soil (medium) 4100.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 between the frost line 4250 and the top 4225 of the soil (medium) 4200.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below the frost line 4250 and to below the top 4225 of the soil (medium) 4200.
The pile 4000 of
The leading edge 114 of helical blade 112 cuts into the soil (medium) 4200 as the pile is rotated into the soil (medium) 4200 at such contact point. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) 4200 passes over helical blade 112 and thereafter past trailing edge 116. The auger grouted pile 5000 includes a lateral compaction member 115 to compact the soil (medium) 4200 and create an annulus 4400. The uppermost portion of helical blade 112 includes an optional deformation structure 120 that displaces the soil (medium) 4200 to create irregularities in the annulus 4400 formed by the lateral compaction element 115.
As illustrated in
The annulus 4400 may be a column formed by the lateral compaction element 115. Moreover, the annulus 4400 may be a deformed column formed by a lateral compaction element 115 and a deformation structure 120.
The pile 5000 further includes a frost sleeve (upheaval resistant sleeve) 4500 that surrounds shaft 4100. The frost sleeve (upheaval resistant sleeve) 4500 may be constructed of PVC, plastic, or metal. The frost sleeve (upheaval resistant sleeve) 4500 is separate from the shaft 4100. In a preferred embodiment, the inside of the frost sleeve (upheaval resistant sleeve) 4500 is covered with grease to make the installation of the frost sleeve (upheaval resistant sleeve) 4500 easier as well as provide a seal between the shaft 4100 and the frost sleeve (upheaval resistant sleeve) 4500.
The frost sleeve (upheaval resistant sleeve) 4500 is configured to provide resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium). The pulling or forcing upwardly of the pile 4000 is due to upheaval forces in the surrounding soil (medium), usually triggered by freezing temperatures or frost.
The length of the frost sleeve (upheaval resistant sleeve) 4500 may be any length to provide the resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium).
In one preferred embodiment, the length of the frost sleeve (upheaval resistant sleeve) 4500 is such that the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below or at the frost line 4250 to the top 4225 of the soil (medium) 4100.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 between the frost line 4250 and the top 4225 of the soil (medium) 4200.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below the frost line 4250 and to below the top 4225 of the soil (medium) 4200.
The pile 5000 of
The leading edge of helical blade 4300 cuts into the soil (medium) 4200 as the pile 4000 is rotated. The pile 4000 may be equipped with a point 4600 to promote this cutting. The soil (medium) 4200 passes over the helical blade 4300 and thereafter past trailing edge.
As illustrated in
The annulus 4400 may be a column formed by a lateral compaction element (not shown), as described above. Moreover, the annulus 4400 may be a deformed column formed by a lateral compaction element (not shown) and a deformation structure (not shown), as described above.
The pile 4000 further includes a frost sleeve (upheaval resistant sleeve) 4500 that surrounds shaft 4100. The frost sleeve (upheaval resistant sleeve) 4500 may be constructed of PVC, plastic, or metal. The frost sleeve (upheaval resistant sleeve) 4500 is separate from the shaft 4100. In a preferred embodiment, the inside of the frost sleeve (upheaval resistant sleeve) 4500 is covered with grease to make the installation of the frost sleeve (upheaval resistant sleeve) 4500 easier as well as provide a seal between the shaft 4100 and the frost sleeve (upheaval resistant sleeve) 4500.
The frost sleeve (upheaval resistant sleeve) 4500 is configured to provide resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium). The pulling or forcing upwardly of the pile 4000 is due to upheaval forces in the surrounding soil (medium), usually triggered by freezing temperatures or frost.
The length of the frost sleeve (upheaval resistant sleeve) 4500 may be any length to provide the resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium).
In one preferred embodiment, the length of the frost sleeve (upheaval resistant sleeve) 4500 is such that the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below or at the frost line 4250 to the top 4225 of the soil (medium) 4100.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 between the frost line 4250 and the top 4225 of the soil (medium) 4200.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below the frost line 4250 and to below the top 4225 of the soil (medium) 4200.
The pile 4000 further includes a grout disrupting plate 4700 which is located right below the frost sleeve (upheaval resistant sleeve) 4500. The grout disrupting plate 4700 may be constructed of PVC, plastic, or metal. In one embodiment, the grout disrupting plate 4700 may be attached to the frost sleeve (upheaval resistant sleeve) 4500. Alternatively, the grout disrupting plate 4700 is not attached to the frost sleeve (upheaval resistant sleeve) 4500.
The grout disrupting plate 4700 creates a disruption in the grout 4450 such that during time of frost upheaval, the grout 4450 above the grout disrupting plate 4700 (above the frost line 4250) will separate from the grout 4450 below the grout disrupting plate 4700 (below the frost line 4250), thereby leaving the grout 4450 below the grout disrupting plate 4700 (below the frost line 4250) intact to provide lateral support for the pile 4000. The grout 4450 above the grout disrupting plate 4700 (above the frost line 4250) still provide some lateral support for the pile 4000, but the main lateral support will be provided by the undisturbed grout 4450 below the grout disrupting plate 4700 (below the frost line 4250).
The pile 4000 of
The leading edge 114 of helical blade 112 cuts into the soil (medium) 4200 as the pile is rotated into the soil (medium) 4200 at such contact point. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) 4200 passes over helical blade 112 and thereafter past trailing edge 116. The auger grouted pile 5000 includes a lateral compaction member 115 to compact the soil (medium) 4200 and create an annulus 4400. The uppermost portion of helical blade 112 includes an optional deformation structure 120 that displaces the soil (medium) 4200 to create irregularities in the annulus 4400 formed by the lateral compaction element 115.
As illustrated in
The annulus 4400 may be a column formed by the lateral compaction element 115. Moreover, the annulus 4400 may be a deformed column formed by a lateral compaction element 115 and a deformation structure 120.
The pile 5000 further includes a frost sleeve (upheaval resistant sleeve) 4500 that surrounds shaft 4100. The frost sleeve (upheaval resistant sleeve) 4500 may be constructed of PVC, plastic, or metal. The frost sleeve (upheaval resistant sleeve) 4500 is separate from the shaft 4100. In a preferred embodiment, the inside of the frost sleeve (upheaval resistant sleeve) 4500 is covered with grease to make the installation of the frost sleeve (upheaval resistant sleeve) 4500 easier as well as provide a seal between the shaft 4100 and the frost sleeve (upheaval resistant sleeve) 4500.
The frost sleeve (upheaval resistant sleeve) 4500 is configured to provide resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium). The pulling or forcing upwardly of the pile 4000 is due to upheaval forces in the surrounding soil (medium), usually triggered by freezing temperatures or frost.
The length of the frost sleeve (upheaval resistant sleeve) 4500 may be any length to provide the resistance against the pile 4000 being pulled or forced upwardly out of the surrounding soil (medium).
In one preferred embodiment, the length of the frost sleeve (upheaval resistant sleeve) 4500 is such that the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below or at the frost line 4250 to the top 4225 of the soil (medium) 4100.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 between the frost line 4250 and the top 4225 of the soil (medium) 4200.
In another preferred embodiment, the frost sleeve (upheaval resistant sleeve) 4500 covers the shaft 4100 from below the frost line 4250 and to below the top 4225 of the soil (medium) 4200.
The pile 5000 further includes a grout disrupting plate 4700 which is located right below the frost sleeve (upheaval resistant sleeve) 4500. The grout disrupting plate 4700 may be constructed of PVC, plastic, or metal. In one embodiment, the grout disrupting plate 4700 may be attached to the frost sleeve (upheaval resistant sleeve) 4500. Alternatively, the grout disrupting plate 4700 is not attached to the frost sleeve (upheaval resistant sleeve) 4500.
The grout disrupting plate 4700 creates a disruption in the grout 4450 such that during time of frost upheaval, the grout 4450 above the grout disrupting plate 4700 (above the frost line 4250) will separate from the grout 4450 below the grout disrupting plate 4700 (below the frost line 4250), thereby leaving the grout 4450 below the grout disrupting plate 4700 (below the frost line 4250) intact to provide lateral support for the pile 5000. The grout 4450 above the grout disrupting plate 4700 (above the frost line 4250) still provide some lateral support for the pile 5000, but the main lateral support will be provided by the undisturbed grout 4450 below the grout disrupting plate 4700 (below the frost line 4250).
The pile 5000 of
The leading edge of helical blade 4300 cuts into the soil (medium) 4200 as the pile 4000 is rotated. The pile 4000 may be equipped with a point 4600 to promote this cutting. The soil (medium) 4200 passes over the helical blade 4300 and thereafter past trailing edge.
As illustrated in
The annulus 4400 may be a column formed by a lateral compaction element (not shown), as described above. Moreover, the annulus 4400 may be a deformed column formed by a lateral compaction element (not shown) and a deformation structure (not shown), as described above.
The pile 4000 further includes a grout disruption (separation) plate 4700 which is located right below frost sleeve (upheaval resistant sleeve) 4500. The grout disruption (separation) plate 4700 may be constructed of PVC, plastic, or metal. In one embodiment, the grout disruption (separation) plate 4700 may be attached to the pile 4000. Alternatively, the grout disruption (separation) plate 4700 is not attached to the pile 4000.
The grout disrupting plate 4700 creates a disruption in the grout 4450 such that during time of frost upheaval, the grout 4450 above the grout disruption (separation) plate 4700 (above the frost line 4250) will separate from the grout 4450 below the grout disruption (separation) plate 4700 (below the frost line 4250), thereby leaving the grout 4450 below the grout disruption (separation) plate 4700 (below the frost line 4250) intact to provide lateral support for the pile 4000. The grout 4450 above the grout disruption (separation) plate 4700 (above the frost line 4250) still provide some lateral support for the pile 4000, but the main lateral support will be provided by the undisturbed grout 4450 below the grout disruption (separation) plate 4700 (below the frost line 4250).
The pile 4000 of
The leading edge 114 of helical blade 112 cuts into the soil (medium) 4200 as the pile is rotated into the soil (medium) 4200 at such contact point. The soil (medium) displacement head 108 may be equipped with a point 118 to promote this cutting.
The soil (medium) 4200 passes over helical blade 112 and thereafter past trailing edge 116. The auger grouted pile 5000 includes a lateral compaction member 115 to compact the soil (medium) 4200 and create an annulus 4400. The uppermost portion of helical blade 112 includes an optional deformation structure 120 that displaces the soil (medium) 4200 to create irregularities in the annulus 4400 formed by the lateral compaction element 115.
As illustrated in
The annulus 4400 may be a column formed by the lateral compaction element 115. Moreover, the annulus 4400 may be a deformed column formed by a lateral compaction element 115 and a deformation structure 120.
The pile 5000 further includes a grout disruption (separation) plate 4700 which is located right below the frost sleeve (upheaval resistant sleeve) 4500. The grout disruption (separation) plate 4700 is not attached to the pile 5000.
The grout disruption (separation) plate 4700 creates a disruption in the grout 4450 such that during time of frost upheaval, the grout 4450 above the grout disrupting plate 4700 (above the frost line 4250) will separate from the grout 4450 below the grout disrupting plate 4700 (below the frost line 4250), thereby leaving the grout 4450 below the grout disruption (separation) plate 4700 (below the frost line 4250) intact to provide lateral support for the pile 5000. The grout 4450 above the grout disruption (separation) plate 4700 (above the frost line 4250) still provide some lateral support for the pile 5000, but the main lateral support will be provided by the undisturbed grout 4450 below the grout disruption (separation) plate 4700 (below the frost line 4250).
The pile 5000 of
In the various embodiments described above, the shaft may be a solid bar, a solid pipe, a hollow bar, or a hollow pipe. Moreover, in the various embodiments described above, the shaft may be round, rectangular, or square.
In the various embodiments described above, the supporting medium may be grout.
In the various embodiments described above, the embodiments are applicable to a displacement pile and/or a helical pile.
A pile includes a shaft and a soil displacement head, operatively connected to a first end of the shaft, having a helical blade with a leading edge and a trailing edge; the shaft having deformations formed thereon to provide a gripping interface between a supporting medium or grout and the pile.
The deformations may be threads. The threads may be formed on the entire length of the shaft.
The deformations may be a plurality of projections (protrusions) projecting away from the shaft. The deformations may be a plurality of indentations projecting into the shaft. The deformations may be a plurality of indentations projecting into the shaft and a plurality of projections (protrusions) projecting away from the shaft.
The pile may include a lateral compaction element, located within the helical blade to laterally compact a medium, as the pile is driven into the medium, to create an annulus in the medium. The pile may include a deformation structure disposed above the lateral compaction element to create a spiral deformation in an outer wall of the annulus.
A pile for being driven into soil comprises a shaft and a frost sleeve surrounding the shaft; the frost sleeve being located on the shaft between a top of the soil and a frost line.
The frost sleeve may have a length equal to a distance between the top of the soil and the frost line. The frost sleeve may have a length greater than a distance between the top of the soil and the frost line.
The frost sleeve may be constructed of PVC. The frost sleeve may be constructed of metal.
The pile may further comprise grease located between the shaft and the frost sleeve.
The pile may further comprise a grout disruption plate; the grout disruption plate being located at the frost line.
The grout disruption plate may be attached to the frost sleeve.
The grout disruption plate may be constructed of PVC. The grout disruption plate may be constructed of metal.
A pile for being placed in a supporting medium comprises an pile shaft; a helical blade, operatively connected to the pile shaft, having a leading edge and a trailing edge and configured to move the pile into the supporting medium; a lateral compaction protrusion, formed on the pile shaft, to create an annulus within the supporting medium, the annulus, created by the lateral compaction protrusion, having a diameter greater than a diameter of the pile shaft; and a frost sleeve surrounding the pile shaft; the frost sleeve being located on the shaft between a top of the soil and a frost line.
The frost sleeve may have a length equal to a distance between the top of the soil and the frost line. The frost sleeve may have a length greater than a distance between the top of the soil and the frost line.
The frost sleeve may be constructed of PVC. The frost sleeve may be constructed of metal.
The pile may further comprise grease located between the shaft and the frost sleeve.
The pile may further comprise a grout disruption plate; the grout disruption plate being located at the frost line.
The grout disruption plate may be attached to the frost sleeve.
The grout disruption plate may be constructed of PVC. The grout disruption plate may be constructed of metal.
A device for preventing a grout supported pile, driven into a soil, from experiencing frost induced upheavals, comprises a frost sleeve configured to surround a shaft of the grout supported pile and to allow movement of the cylindrical frost sleeve with respect to the shaft.
The frost sleeve may have a length equal to a distance between the top of the soil and the frost line. The frost sleeve may have a length greater than a distance between the top of the soil and the frost line.
The frost sleeve may be constructed of PVC. The frost sleeve may be constructed of metal.
The pile may further comprise grease located between the shaft and the frost sleeve.
The pile may further comprise a grout disruption plate, the grout disruption plate being located at the frost line.
The grout disruption plate may be attached to the frost sleeve.
The grout disruption plate may be constructed of PVC. The grout disruption plate may be constructed of metal.
It will be appreciated that several of the above-disclosed embodiments and other features and functions, or alternatives thereof, may be desirably combined into many other different systems or applications. Also, various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the above description.
The present application claims priority, under 35 U.S.C. § 119(e), from U.S. Provisional Patent Application Ser. No. 63/527,703, filed on Jul. 19, 2023. The entire content of U.S. Provisional Patent Application Ser. No. 63/527,703, filed on Jul. 19, 2023, is hereby incorporated by reference.
Number | Date | Country | |
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63527703 | Jul 2023 | US |