Self-Stabilizing Underground Excavation Cross Section

Information

• NSF Award
• 9060994

Owner

• TerraTek, Inc.

• Award Id

  9060994

• Award Effective Date

  1/1/1991 - 33 years ago

• Award Expiration Date

  9/30/1991 - 32 years ago

• Award Amount

  $ 50,000.00

• Award Instrument

  Standard Grant

This SBIR Phase I research will experimentally and analytical evaluate the load bearing capacity of different borehole breakouts, and the feasibility of using such configurations as an excavation shape. If tunnels or underground excavations incorporate a cross- sectional shape similar to a stable breakout, the cost of support and long term maintenance could be greatly reduced or possibly eliminated.

• Program Officer

  Ritchie B. Coryell

• Min Amd Letter Date

  12/17/1990 - 33 years ago

• Max Amd Letter Date

  12/17/1990 - 33 years ago

• ARRA Amount

• Name

  TerraTek, Inc.

• City

  Salt Lake City

• State

  UT

• Country

  United States

• Address

  400 Wakara Way

• Postal Code

  841081292

• Phone Number

  8015842407

• First Name

  Ziqionq

• Last Name

  Zheng

• Start Date

  1/1/1991 12:00:00 AM