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ASTM D4729-19

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ASTM D4729-19

Standard Test Method for In Situ Stress and Modulus of Deformation Using the Flat Jack Method

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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