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ASTM D4729-19
Standard Test Method for In Situ Stress and Modulus of Deformation Using the Flat Jack MethodMore info
1.1 The flat jack test measures the natural or altered in situ stress at a rock surface either for a surface outcrop or an underground excavation surface. The modulus of deformation and the long-term deformational properties (creep) may also be evaluated for the applied stress range, however long-term creep is not covered by this method.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| ICS | 93.020 : Earthworks. Excavations. Foundation construction. Underground works |
| Number of pages | 10 |
| Replace | ASTM D4729-08 |
| Year | 2019 |
| Document history | ASTM D4729-08 ASTM D4729-04 ASTM D4729-87(1997) |
| Country | USA |
| Keyword | ASTM 4729;ASTM D4729;ASTM D4729;10.1520/D4729-19 |