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Test device for rock multi-angle compression-shear loading and unloading and loading method

A test device, multi-angle technology, applied in the direction of measuring device, using stable shear force to test material strength, using stable tension/compression to test material strength, etc.

Pending Publication Date: 2020-07-07
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This fundamentally limits the study of rock mechanical properties under complex stress conditions

Method used

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  • Test device for rock multi-angle compression-shear loading and unloading and loading method
  • Test device for rock multi-angle compression-shear loading and unloading and loading method
  • Test device for rock multi-angle compression-shear loading and unloading and loading method

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Embodiment 1

[0038] Such as Figure 1-3 As shown, a test device for multi-angle compressive shear loading and unloading of rock described in this embodiment has a structure including: a loading system, a hydraulic system, and a stress-strain control system. The loading system includes an upper splint 1, a lower splint 2, a jack 3, a rubber pad 4, and a sample 5; the hydraulic system includes a hydraulic storage tank 6, a ball valve 7, a hydraulic application motor 10, a hydraulic balancer 11, a hydraulic Monitor 8, ball valve 9, hydraulic adjustment system 12, pressure recorder 13, catheter 14; the stress and strain control system includes signal transmission line 15, stress and strain detector 16, stress and strain-hydraulic control processor 17, display 18;

[0039] The side of the sample 5 is completely wrapped by a rubber pad 4 coated with butter, and a single side of the sample 5 is wrapped by two or more independent rubber pads 4, and the size of the single rubber pad 4 is the same a...

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Abstract

The invention discloses a test device for rock multi-angle compression-shear loading and unloading and a loading method, and belongs to the technical field of material complex load testing. The deviceis used in combination with a uniaxial compression testing machine. The test device can accurately realize loading and unloading of the test sample; the test sample can be converted into a compression-shear stress state from a two-way stress state; the conversion rate and the force can be controlled; the load controllability is high, enough loading and unloading precision is achieved; the loadingsystem of the test device is simple in structure and convenient to machine and maintain in the later period, test operation can be conveniently conducted, and on the premise that normal use of an existing uniaxial compression testing machine is not affected, the multi-angle compression-shear loading and unloading test of the rock sample can be achieved.

Description

technical field [0001] The invention belongs to the technical field of material complex load testing, and relates to a rock test device, which can be used for multi-angle compressive shear loading and unloading tests of rock materials, specifically a test device for rock multi-angle compressive shear loading and unloading and loading method. Background technique [0002] In recent years, with the continuous accelerated development of domestic infrastructure construction, the state's investment in infrastructure construction is also increasing. As the common material basis for all enterprises, units and residents to produce, operate, work and live, infrastructure construction has received the key attention of the state. [0003] The construction problems of dams, road bridges, tunnels and underground works in infrastructure construction are important research objects of geotechnical engineering. Among them, the problems of deep rock mechanics in mineral resources developmen...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N3/24
CPCG01N3/12G01N3/24G01N2203/0019G01N2203/0025G01N2203/0075
Inventor 董涛曹平张向阳曹日红王飞刘智振林奇斌雍伟勋万杰郭伟韬杨恩邓慧娟欧传景姜德生
Owner CENT SOUTH UNIV
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