ASTM D5607 PDF

GeoTesting Express is a provider of Rock Testing Services – ASTM D – Sliding Friction,(Rock Sliding Friction) Standard Test Method for Performing. GeoTesting Express is a provider of Rock Testing Services – ASTM D – Direct Shear,(Rock Direct Shear) Standard Test Method for Performing Laboratory. Lab ID: ASTM D Use. This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens.

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When the normal load is large enough to completely restrain dilation, the shear mechanism consists of the shearing off of the asperities. Therefore nominal area is used for loading purposes and calculations.

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Discontinuities may be open, partially or completely healed or filled that is, clay fillings and gouge. When the normal force is not sufficient to restrain dilation, the shear mechanism consists of the overriding of the asperities.

It includes procedures for both intact rock strength and sliding friction tests, which can be performed on specimens that are homogeneous, or have planes of weakness, including natural or artificial discontinuities.

In addition, they are representative of the significant digits that generally should be retained. During the test, shear strength is determined at various applied stresses normal to the sheared plane and at various shear displacements. Link to Active This link will always route to the current Active version of the standard. Since this test method makes no provision for the measurement of pore pressures, the strength aastm determined are expressed in terms of total stress, uncorrected for pore pressure.

It includes procedures for both intact rock strength and sliding friction tests which can be performed on specimens that are homogeneous, or have planes of weakness, including natural or artificial discontinuities.

Results Produced Report of direct shear strengths five to nine pages depending on sample type including the following: However, a e5607, open discontinuity may be free draining, and, therefore, a test on a clean, open discontinuity could be considered a drained test. Users of this standard are cautioned astk compliance with Practice D does not in itself assure reliable results. The test is usually conducted in the undrained state with an applied constant normal load.

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The actual contact areas during testing change, but the actual total contact surface is unmeasurable. Only one discontinuity per specimen can be tested.

The actual contact areas during testing change, but the actual total contact surface is unmeasurable. The constant normal load boundary condition is appropriate for problems where the normal stress is constant along the discontinuity.

ASTM D Use This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens. This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens. The values given in parentheses are mathematical conversions to inch-pound units, which are provided for information only and are not considered standard. Note 1—The term “normal force” is used in the title instead of normal stress because of the indefinable area of contact and the minimal relative displacement between upper and lower halves of the specimen during testing.

Aztm situ direct shear testing limits the inherent scale effects found in rock mechanics problems d5670 the laboratory scale may not be representative of the field scale. Two versions are available:. Examples of an artificial discontinuity include a rock-concrete interface or a lift line from a concrete pour.

Two versions can be used to complete the testing configuration: Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method. The test is usually conducted in the undrained state with an applied constant normal load. Relationships derived from the test data include shear strength versus normal stress and shear stress versus shear displacement shear stiffness.

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The apparatus consists of a shear box designed to accept samples not larger than x mm, or alternatively cores up to mm dia. Clearly label the sample with source, date taken, intact or sliding friction, and a short, unambiguous, identification code. 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.

Therefore, it may be necessary to handle specimens in accordance with Practice D567 and to document moisture conditions in some manner in the data collection.

Instructions Samples should be concrete or rock cores with a diameter no greater than Therefore, the precise prediction of rock mass behavior is difficult.

SET OF 4 DIAL GAUGES TO ASTM D | Matest

Referenced Documents purchase separately The documents listed below are referenced within the subject standard d56607 are not provided as part of the standard. Historical Version s – view previous versions of standard.

This apparatus was originally developed at Imperial college, London, f5607 Professor E. Note 2—Since this test method makes no provision for the measurement of pore pressures, the strength values determined are expressed in terms of total stress, uncorrected for pore pressure.

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Sliding on and shearing of the asperities can occur simultaneously. A summary of peak shear stress, peak residual shear stresses, and residual shear stresses A figure of peak residual stress and residual shear stress vs.

Samples should be concrete or rock cores with a diameter no greater than However, a clean, open discontinuity may be free draining, and, therefore, a test on a clean, open discontinuity could be considered a drained test.

Examples of an artificial discontinuity include a rock-concrete interface or a lift line from a concrete pour. For more info please refer to Releted Products below and Accessories section.