ASTM D4394-04
Standard Test Method for Determining the In Situ Modulus of Deformation of Rock Mass Using the Rigid Plate Loading Method
- Standard No.
- ASTM D4394-04
- Release Date
- 2004
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D4394-08
- Latest
- ASTM D4394-17
- Scope
Results of this type of test method are used to predict displacements in rock mass caused by loads from a structure or from underground construction. It is one of several tests that should be performed. The resulting in situ modulus is commonly less than the elastic modulus determined in the laboratory.
The modulus is determined using an elastic solution for a uniformly distributed load (uniform stress) over a circular area acting on a semi-infinite elastic medium that produces a constant normal displacement of the loaded surface area of the medium.
This test method is normally performed at ambient temperature, but equipment can be modified or substituted for operations at other temperatures.
1.1 This test method covers the preparation, equipment, test procedure, and data reduction for determining in situ modulus of deformation of a rock mass using the rigid plate loading method.
1.2 This test method is designed to be conducted in an adit or small underground chamber; however, with suitable modifications it could be conducted at the surface.
1.3 This test method is usually conducted parallel or perpendicular to the anticipated axis of thrust, as dictated by the design load.
1.4 Time dependent tests can be performed but are to be reported in another standard.
1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.
1.5.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.
1.6 The values stated in inch-pound units are to be regarded as the standard.
1.7 The references appended to this standard contain further information on this test method.
1.8 This standard does not purport to address all of the safety concerns, if any, 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 requirements prior to use.
For specific precaution statements, see Section .
ASTM D4394-04 Referenced Document
- ASTM D2113 Standard Practice for Rock Core Drilling and Sampling of Rock for Site Investigation
- ASTM D4395 Standard Test Method for Determining the In Situ Modulus of Deformation of Rock Mass Using the Flexible Plate Loading Method
- ASTM D4403 Standard Practice for Extensometers Used in Rock
- ASTM D4879 Standard Guide for Geotechnical Mapping of Large Underground Openings in Rock
- ASTM D5079 Standard Practices for Preserving and Transporting Rock Core Samples
- ASTM D5434 Standard Guide for Field Logging of Subsurface Explorations of Soil and Rock
- ASTM D6026 Standard Practice for Using Significant Digits in Geotechnical Data
- ASTM D6032 Standard Test Method for Determining Rock Quality Designation (RQD) of Rock Core
- ASTM D653 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D4394-04 history
- 2017 ASTM D4394-17 Standard Test Method for Determining In Situ Modulus of Deformation of Rock Mass Using Rigid Plate Loading Method
- 2008 ASTM D4394-08 Standard Test Method for Determining In Situ Modulus of Deformation of Rock Mass Using Rigid Plate Loading Method
- 2004 ASTM D4394-04 Standard Test Method for Determining the In Situ Modulus of Deformation of Rock Mass Using the Rigid Plate Loading Method
- 1984 ASTM D4394-84(1998) Standard Test Method for Determining the In Situ Modulus of Deformation of Rock Mass Using the Rigid Plate Loading Method
