Posted on: March 3, 2020 Posted by: admin Comments: 0

ASTM D7012 PDF

ASTM D Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and. ASTM D Method C. Reference. Uniaxial Compressive Strength of Intact Rock Core Specimens. (deg). Type. Failure Mode. Rock Type. Buy ASTM D TEST METHOD FOR COMPRESSIVE STRENGTH AND ELASTIC MODULI OF INTACT ROCK CORE SPECIMENS UNDER VARYING.

Author: Moramar Vimuro
Country: Cameroon
Language: English (Spanish)
Genre: Travel
Published (Last): 25 February 2005
Pages: 391
PDF File Size: 13.51 Mb
ePub File Size: 12.63 Mb
ISBN: 630-3-31190-986-4
Downloads: 56050
Price: Free* [*Free Regsitration Required]
Uploader: Shakalrajas

ASTM D7012 – 14e1

Active view current version of standard. Iva Company info Privacy policy Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy.

Semi-automatic Uniaxial and Triaxial test system. The test system comprehends: However, there are some cases where xstm the rock type or the loading condition of the problem under consideration will require the effective stress or drained c7012 be determined. These test methods do not include the procedures necessary to obtain a stress-strain curve beyond the ultimate strength.

Rock mechanics – Accessories for uniaxial and triaxial tests: Maintenance Spares Technical trainings Warranty Academy. Gshear modulus,Kbulk modulus, EYoung’s modulus, and Poisson’s ratio. It is the responsibility of the user of this standard awtm establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Home Products Search results Results for: No other units of measurement are included in this standard. It performs either uniaxial or triaxial tests under Users of this standard are cautioned that aastm with Practice D does not in itself ensure reliable results.

The elastic constants Methods B and D are used to calculate the stress and deformation in rock structures.

Rock mechanics – Uniaxial and triaxial test systems: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the astmm of the equipment and facilities used. This standard does not purport to address all of the safety concerns, if any, associated with its use. Deformation and strength of rock are known to be functions of confining pressure.

  GORENJE WT 941 BEDIENUNGSANLEITUNG PDF

Method A, triaxial compression test, is commonly used to simulate the stress astmm under which most underground rock masses exist. Thus, the strength values determined are in terms of total stress and are not corrected for pore pressures.

The Rock core should have a diameter from Platens surface hardness certificate The standards prescribe atsm minimum surface hardness depending on the type of test to be performed. Methods A and B determine the triaxial compressive strength at different pressures asrm Methods C and D determine the unconfined, uniaxial strength.

Follow us YouTube Ashm. It is desirable to conduct tests in the plane of foliation, cleavage or bedding and at right angles to it to determine the degree of anisotropy. When required, the hardness verification is performed with certified instruments. The test method specifies the apparatus, instrumentation, and procedures for determining the stress-axial strain and the stress-lateral strain curves, as well as Young’s modulus, Eand Poisson’s ratio.

Hoek cells and sample extruder The Hoek triaxial cells are offered in five models of different size; each one consists of the following: 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. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design.

The 2 consoles are operated independently and the Asrm option is identified by the Certificate code shown on the following table. It should be observed that this method makes no provision for pore pressure measurements and specimens are undrained d77012 are not vented.

Historical Version s – view previous versions of asmt. The elastic moduli for such rocks should be determined from unload-reload cycles that are not covered by these test methods.

It is desirable to conduct tests in the plane of foliation, cleavage or bedding and at right angles to it to determine the degree of anisotropy.

  DUNGEONBOWL RULES PDF

The elastic moduli for such rocks should be determined from unload-reload cycles, that are not covered by this test method. Link ast Active This link will always route to the current Active version of the standard. The tests provide data in determining the strength of rock, namely: Rock mechanics – Highly advanced rock testing systems: Note 1 Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy.

This test method does not include the procedures necessary to obtain a stress-strain curve beyond the ultimate r7012. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Strain is not typically measured; therefore a stress-strain asrm is not produced. In the triaxial mode, a water pressure gradient may be applied to the specimen Agencies that meet the criteria of Practice D are generally considered capable of competent and objective testing.

ASTM D, Test equipment Controls

These methods make no provision for pore pressure measurements and specimens are undrained platens are not vented. In addition, they are representative of the significant digits that generally should be retained. Therefore, laboratory values for intact specimens must be employed with proper judgment in engineering applications. The original four standards are now referred to as Methods in this standard. Link to Active This link will always route to the current Active version of the standard.

Elastic moduli measured by sonic methods Test Method D may often be employed as a preliminary measure satm anisotropy. Thus the strength values determined are in terms of total stress, that is, are not corrected for pore pressures.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Categories:

Leave a Comment