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ASTM D4506-90(1995)

Historical Reaffirmation

Standard Test Method for Determining In Situ Modulus of Deformation of a Rock Mass Using the Radial Jacking Test

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1.1 This test method is used to determine the in situ modulus of deformation of rock mass by subjecting a test chamber of circular cross section to uniformly distributed radial loading; the consequent rock displacements are measured, from which elastic or deformation moduli may be calculated. The anisotropic deformability of the rock can also be measured and information on time-dependent deformation may be obtained.

1.2 This test method is based upon the procedures developed by the U.S. Bureau of Reclamation featuring long extensometers (1) . An alternative procedure is also available and is based on a reference bar (2).

1.3 Application of the test results is beyond the scope of this test method, but may be an integral part of some testing programs.

1.4 The values stated in inch-pound units are to be regarded as the standard.

1.5 This standard does not purport to address the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number D4506
Publication Date Jan. 1, 1995
Language en - English
Page Count 6
Revision Level 90(1995)
Supercedes
Committee D18.12
Publish Date Document Id Type View
Sept. 1, 2021 D4506-21 Revision
Nov. 1, 2013 D4506-13E01 Revision
Nov. 1, 2013 D4506-13 Revision
July 1, 2008 D4506-08 Revision
Jan. 10, 2002 D4506-02 Revision
May 1, 2006 D4506-02R06 Reaffirmation
Jan. 1, 1995 D4506-90R95 Reaffirmation