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  • ASTM D 7070 : 2016 : REDLINE

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    Standard Test Methods for Creep of Rock Core Under Constant Stress and Temperature

    Available format(s):  PDF

    Language(s):  English

    Published date:  01-11-2016

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    CONTAINED IN VOL. 04.09, 2015 Describes the creep behavior of intact soft and hard rock core in fixed states of stress and temperature. It specifies the apparatus, instrumentation, and procedures for determining the strain as a function of time under sustained load.

    Scope - (Show below) - (Hide below)

    1.1These test methods cover the creep behavior of intact weak and hard rock core in fixed states of stress at ambient (room) or elevated temperatures. For creep behavior at lower temperatures refer to Test Method D5520. The methods specify the apparatus, instrumentation, and procedures necessary to determine the strain as a function of time under sustained load at constant temperature and when applicable, constant humidity.

    1.1.1Hard rocks are considered those with a maximum axial strain at failure of less than 2 %. Weak rocks include such materials as salt, potash, shale, and weathered rock, which often exhibit very large strain at failure.

    1.2This standard consists of three methods that cover the creep capacity of core specimens.

    1.2.1Method A—Creep of Hard Rock Core Specimens in Uniaxial Compression at Ambient or Elevated Temperature.

    1.2.2Method B—Creep of Weak Rock Core Specimens in Uniaxial Compression at Ambient or Elevated Temperature.

    1.2.3Method C—Creep of Rock Core Specimens in Triaxial Compression at Ambient or Elevated Temperature.

    1.3All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

    1.4The procedures used to specify how data are collected/recorded and calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to commensurate with these considerations. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design.

    1.5Units—The values stated in SI units are to be regarded as the standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

    1.6This 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 to determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 7.

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    Committee D 18
    Development Note Supersedes ASTM D 4341, ASTM D 4405 and ASTM D 4406 (12/2005)
    Document Type Redline
    Publisher American Society for Testing and Materials
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    14/30268442 DC : 0 BS 5930 - CODE OF PRACTICE FOR GROUND INVESTIGATIONS
    BS EN ISO 19901-8:2015 Petroleum and natural gas industries. Specific requirements for offshore structures Marine soil investigations
    API RP 1170 : 2015 DESIGN AND OPERATION OF SOLUTION-MINED SALT CAVERNS USED FOR NATURAL GAS STORAGE
    ISO 19901-8:2014 Petroleum and natural gas industries Specific requirements for offshore structures Part 8: Marine soil investigations
    CSA ISO 19901-8 : 2015 PETROLEUM AND NATURAL GAS INDUSTRIES - SPECIFIC REQUIREMENTS FOR OFFSHORE STRUCTURES - PART 8: MARINE SOIL INVESTIGATIONS
    CSA ISO 19901-8:15 (R2020) Petroleum and natural gas industries — Specific requirements for offshore structures — Part 8: Marine soil investigations (Adopted ISO 19901-8:2014, first edition, 2014-12-01)
    EN ISO 19901-8 : 2015 PETROLEUM AND NATURAL GAS INDUSTRIES - SPECIFIC REQUIREMENTS FOR OFFSHORE STRUCTURES - PART 8: MARINE SOIL INVESTIGATIONS (ISO 19901-8:2014)
    13/30257183 DC : 0 BS EN ISO 19901-8 - PETROLEUM AND NATURAL GAS INDUSTRIES - SPECIFIC REQUIREMENTS FOR OFFSHORE STRUCTURES - PART 8: MARINE SOIL INVESTIGATIONS
    I.S. EN ISO 19901-8:2015 PETROLEUM AND NATURAL GAS INDUSTRIES - SPECIFIC REQUIREMENTS FOR OFFSHORE STRUCTURES - PART 8: MARINE SOIL INVESTIGATIONS (ISO 19901-8:2014)
    BS 5930:2015 CODE OF PRACTICE FOR GROUND INVESTIGATIONS

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM E 122 : 2017 : REDLINE Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
    ASTM D 3740 : 2012-06 PRACTICE FOR MINIMUM REQUIREMENTS FOR AGENCIES ENGAGED IN TESTING AND/OR INSPECTION OF SOIL AND ROCK AS USED IN ENGINEERING DESIGN AND CONSTRUCTION
    ASTM D 2113 : 2014 : REDLINE Standard Practice for Rock Core Drilling and Sampling of Rock for Site Exploration
    ASTM D 6026 : 2013 : REDLINE Standard Practice for Using Significant Digits in Geotechnical Data
    ASTM D 653 : 2014 : REDLINE Standard Terminology Relating to Soil, Rock, and Contained Fluids
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