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Patents Grantslast 30 patents

Information Patent Grant
Recyclable sand-consolidated anchor head prestressed anchor, anchor...
- Patent number 10,794,184
- Issue date Oct 6, 2020
- Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
- Guanhua Sun
- E21 - EARTH DRILLING MINING
Information Patent Grant
Root key type pressure bearing mechanism in anchor hole, root key t...
- Patent number 9,783,948
- Issue date Oct 10, 2017
- Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
- Guanhua Sun
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
RECYCLABLE SAND-CONSOLIDATED ANCHOR HEAD PRESTRESSED ANCHOR, ANCHOR...
- Publication number 20200102826
- Publication date Apr 2, 2020
- Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
- Guanhua SUN
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
ROOT KEY TYPE PRESSURE BEARING MECHANISM IN ANCHOR HOLE, ROOT KEY T...
- Publication number 20170175354
- Publication date Jun 22, 2017
- Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
- Guanhua SUN
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES