Document: NRC Regulatory Guide
Document ID: 1859c547-c10c-4ce4-ad2e-e54f7b66d4ef
Document Type: regulatory_guide
Title: Laboratory Investigations of Soils and Rocks for Engineering Analysis and Design of Nuclear Power Plants + HISTORY – HISTORY 07/2014 – DG-1256 , Proposed Revision 3 08/2001 – DG-1109 , Proposed Revision 2 (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1318/ML13186A032.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.138
CFR Part: 
CFR Title: 

Content:
idated- drained ASTM D3080-04 Ref. 4 Cohesion and angle of internal friction under drained conditions Triaxial compression, unconsolidated- undrained ASTM D2850-03a(2007) Refs. 2, 4, 25 Shear strength parameters; cohesion and angle of internal friction for soils of low permeability Triaxial compression, consolidated- drained ASTM D7181-11 Refs. 2, 4, 25 Shear strength parameters; cohesion and angle of internal friction; for long-term loading conditions Circumferential drains, if used, should be slit to avoid stiffening the test specimen. Triaxial compression, consolidated- undrained ASTM D4767-04 Refs. 2, 4, 25 Shear strength parameters; cohesion and angle of internal friction for consolidated soil. With pressure measurements, cohesion and friction may be obtained. Circumferential drains, if used, should be slit to avoid stiffening of test specimen. Cyclic triaxial ASTM D3999-91(2006) Refs. 8, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 Local strain, modulus and damping D5311-92(2004) Cyclic simple shear Refs. 30, 36 Shear modulus and damping values and cyclic strength of cohesive and cohesionless soils Tests may be run with either stress control or strain control. Two different types of apparatus, NGI and Roscoe devices, are described in Refs. 35 and 37, respectively. ROCKS—ENGINEERING PROPERTIES Water content ASTM D2216-10 Water Content Specific gravity ASTM C127-07 Porosity ASTM D4612-08 Refs. 10, 41 Bulk unit weight, specific gravity, and total porosity (Melcher method) or effective porosity (Simmons or Washburn-Bunting methods) Soil testing methods are generally applicable with minor modification. D4404-10 Appendix A to DG-1256, Page A-4 NAME OF TEST STANDARD OR PREFERRED METHOD APPENDIX A REFERENCES PROPERTIES OR PARAMETERS DETERMINED REMARKS/SPECIAL EQUIPMENT REQUIREMENTS Permeability ASTM D4525-08 Refs. 10, 41 Permeability of intact rock Laboratory permeability values are not normally representative of in situ permeability of shallow jointed rock masses.