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A kind of rock tensile strength test device and test method thereof

A tensile strength, testing device technology, applied in the direction of measuring device, strength characteristics, using stable tension/compression test material strength, etc. The effect of stress concentration and tensile eccentricity, small size and easy portability

Active Publication Date: 2020-06-02
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing axial stretching devices have deficiencies in dealing with stress concentration, stretching eccentricity, etc., and need to be carried out on a large-scale testing machine, which cannot be tested on-site

Method used

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  • A kind of rock tensile strength test device and test method thereof
  • A kind of rock tensile strength test device and test method thereof
  • A kind of rock tensile strength test device and test method thereof

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specific Embodiment

[0066] The embodiment of the present invention discloses a rock tensile strength testing device, which includes a pressure sensor 1 and a strain gauge 2, and also includes a power device 3, an active clamp 4, a driven clamp 5, a moving auxiliary device 6, a fixing auxiliary device 7, a The force sleeve 8 and the test platform, and the test platform is provided with a chute 9 and a one-way chute 10, the power device 3, between the power device 3 and the force sleeve 8, and between the force sleeve 8 and the active clamp 4 Between the force sleeve 8 and the one-way chute 10, between the moving auxiliary device 6 and the chute 9, between the fixing auxiliary device 7 and the chute 9, between the moving auxiliary device 6 and the active clamp 4, between the fixed Both the auxiliary device 7 and the driven clamp 5 are detachably connected;

[0067] Among them, the active clamp 4 and the driven clamp 5 have the same structure, and both include a clamp body 451, an outer cylinder 452...

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Abstract

The invention discloses a rock tensile strength test apparatus which includes a pressure sensor and a strain sheet, and a power device, a driving fixture, a driven fixture, a moving assistant apparatus, a fixed assistant apparatus, a forced sleeve, and a test platform provided with a slide groove and a one-direction slide groove. The test apparatus and the test method can overcome technical difficulties of stress concentration and eccentric tension during a test process with a rock tensile strength test apparatus in the prior art. The apparatus has simple structure and small size, can be carried to a rock sampling site conveniently for site test, thereby obtaining accurate test results on the basis that the rock is in an actual tensile stress status.

Description

[0001] technical field [0002] The invention relates to the technical field of testing devices, in particular to a rock tensile strength testing device and a testing method thereof. Background technique [0003] With the development of the country, geotechnical engineering has developed rapidly in frontier fields such as hydropower, transportation, energy extraction and storage of nuclear waste disposal. The characteristics of rocks in engineering, which are easy to pull and not easy to compress, lead to more and more damage problems caused by tension stress. At present, in rock mechanics tests, experimental research on tension is very rare, which is seriously out of touch with the reality of the rapid development of geotechnical engineering in my country. , the gaps in the parameters related to rock stretching need to be filled urgently. At present, indirect methods such as Brazilian split test and bending test are generally used to test the tensile strength of rocks. Among ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/04G01N3/08
Inventor 陈登红项华松华心祝查文华杨科
Owner ANHUI UNIV OF SCI & TECH
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