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Multifunctional multi-direction rock shearing-seepage-temperature multi-field coupling test system

A test system and multi-directional technology, applied in the field of multi-functional multi-directional rock shear-seepage-temperature multi-field coupling test system, can solve the problems of complex rock shear mechanical properties and deformation characteristics, and achieve test efficiency improvement, functional Many, widely used effects

Pending Publication Date: 2021-01-29
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing shear equipment can mainly realize tests such as uniaxial compression shear, uniaxial tensile shear, reciprocating cycle shear, torsional shear, triaxial compression shear, variable angle shear, etc., but in actual engineering, The rock mass is affected by factors such as temperature, groundwater, high stress, and disturbance stress in different directions, which makes the mechanical properties and deformation characteristics of rock shear failure more complicated.

Method used

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  • Multifunctional multi-direction rock shearing-seepage-temperature multi-field coupling test system
  • Multifunctional multi-direction rock shearing-seepage-temperature multi-field coupling test system
  • Multifunctional multi-direction rock shearing-seepage-temperature multi-field coupling test system

Examples

Experimental program
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Effect test

Embodiment 1

[0161] Example 1: Ultrasonic test during multi-directional reciprocating shear test

[0162] In this embodiment, the multi-functional and multi-directional rock reciprocating shear test device is used for ultrasonic testing in the multi-directional reciprocating shear test process. The specific test method includes the following steps,

[0163] Step 1: install the acoustic wave transmitting probe 46 in the acoustic wave probe position hole 44 through the acoustic wave probe fixing spring 45, install the acoustic wave receiving probe 47 in the acoustic wave probe position hole 44 through the acoustic wave probe fixing spring 45, and install the acoustic wave transmitting probe 46 and the Acoustic wave receiving probe 47 is connected on the acoustic wave acquisition instrument 56 by wire;

[0164] Step 2: Perform an ultrasonic test while completing the one-dimensional direction reciprocating shear test. The specific operation is: the acoustic wave acquisition instrument 56 trans...

Embodiment 2

[0166] Example 2: Acoustic emission test during multi-directional reciprocating shear test

[0167] In this embodiment, the multi-functional and multi-directional rock reciprocating shear test device is used to perform the acoustic emission test during the multi-directional reciprocating shear test. The specific test method includes the following steps,

[0168]Step 1: install the eight acoustic emission probes 41 in the position holes 39 of the eight acoustic emission probes respectively through the eight acoustic emission probe fixing springs 40, and connect the eight acoustic emission probes 41 to the acoustic emission acquisition control system 55 through wires ;

[0169] Step 2: Perform the acoustic emission test while completing the reciprocating shear test in the one-dimensional direction. The specific operation is to install a plurality of acoustic emission probes 41 in the position holes 39 of the acoustic emission probes through the acoustic emission probe fixing spr...

Embodiment 3

[0171] Embodiment 3: Multidirectional reciprocating shear test at different temperatures

[0172] This embodiment utilizes the described multifunctional and multidirectional rock reciprocating shear test device to carry out multidirectional reciprocating shear tests at different temperatures. The specific test method includes the following steps,

[0173] Step 1: Place eight heating rods 43 in eight heating holes 42 respectively, connect eight heating rods 43 to the temperature controller 48 through wires; turn on the temperature controller 48 through the temperature controller power switch 52, The high temperature setting button 51 sets the temperature up and down, and the temperature setting button 53 sets the temperature down, and the set temperature is displayed on the set temperature display screen 50, and the actual temperature is obtained by the temperature sensor on the actual temperature display screen 49 show;

[0174] Step 2: Carry out a one-dimensional reciprocati...

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Abstract

The invention discloses a multifunctional multi-direction rock shearing-seepage- temperature multi-field coupling test system. The system comprises an outer counter-force frame, an inner counter-forceframe and a counter-force frame base, the outer counter-force frame is fixed on the counter-force frame base; the inner counter-force frame is movably connected with the counter-force frame base andis matched with the outer counter-force frame; a shearing box is arranged in the inner counter-force frame; the multi-field coupling test system further comprises an ultrasonic test system, an acoustic emission test system, a temperature test system and a seepage test system; the ultrasonic test system, the acoustic emission test system, the temperature test system and the seepage test system areall installed on the shearing box. The system has the advantages that one-dimensional direction shearing and cyclic reciprocating shearing can be achieved, and acoustic emission, ultrasonic waves, seepage and temperature testing can be conducted at the same time.

Description

technical field [0001] The invention relates to the technical field of multi-field coupling tests of rock shear, acoustic emission, ultrasonic, seepage, temperature, etc., more specifically, it is a multi-functional multi-directional rock shear-seepage-temperature multi-field coupling test system. Background technique [0002] With more and more deep rock mass projects in my country, the engineering geological problems are becoming more and more complex, including active faults, high ground stress, high ground temperature, high groundwater and other problems. The rock mass excavation causes the stress redistribution of the rock mass, and with the deformation and failure of the rock mass, its mechanical properties also change. The shear failure has the greatest impact on engineering safety. Therefore, it is necessary to study the mechanical properties and deformation characteristics of the rock mass shear failure. It is the key scientific problem of rock mechanics. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/36G01N15/08G01N29/14
CPCG01N3/24G01N3/36G01N15/0826G01N29/14G01N2203/0048G01N2203/0658G01N2203/0254
Inventor 周辉胡明明卢景景高阳胡大伟张传庆涂洪亮徐福通
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI