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Experimental device and experimental method for measuring rock mass cyclic shear seepage under high temperature and high pressure

A high-temperature and high-pressure, experimental device technology, used in measuring devices, using stable shear force to test material strength, permeability/surface area analysis, etc. Defects and other problems, to achieve the effect of wide practicability, easy operation and low cost

Active Publication Date: 2021-01-29
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Description
  • Claims
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Problems solved by technology

These two types of equipment can realize the single-pass shear seepage test under high temperature and high pressure; however, due to structural defects, neither can realize the cyclic shear process under high temperature and high pressure, let alone the test of the relationship between shear stress and seepage during the cyclic shear process

Method used

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  • Experimental device and experimental method for measuring rock mass cyclic shear seepage under high temperature and high pressure
  • Experimental device and experimental method for measuring rock mass cyclic shear seepage under high temperature and high pressure
  • Experimental device and experimental method for measuring rock mass cyclic shear seepage under high temperature and high pressure

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention Inside.

[0042] Such as Figures 1 to 8As shown, the experimental device for measuring cyclic shear seepage of rock mass under high temperature and high pressure of the present invention mainly consists of a base 1, a confining pressure cylinder 2, an axial pressure head 3, a confining pressure head 4, a heating rod 5, a temperature sensor 6, and a support 7 , fixed rod 8, pressure transmission m...

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Abstract

The invention discloses an experimental device and an experimental method for measuring cyclic shear seepage of a rock mass at high temperature and high pressure. The seepage characteristic of the rock mass in the cyclic shear process at high temperature and high pressure is tested. The test sample is formed by combining two semi-cylinders, a rock and a rock thin plate; a base is fixedly connectedwith a confining pressure cylinder, the sample is placed in the support, and then the rock thin plate is fixedly connected with the axial pressure head through a fixing rod; the sample, the bracket and the axial pressure head are put into an inner cavity of a confining pressure cylinder, and a pressure transmission medium is placed around the sample and the bracket; the confining pressure head compresses the pressure transmission medium to provide specified confining pressure for the sample, and a high-temperature environment is provided through the heating rod; the pore fluid flows out through a fracture surface in the middle of the sample; the seepage characteristic relation in the rock mass cyclic shearing process at high temperature and high pressure is obtained by measuring fluid parameters of the gas outlet pipe. The device is reasonable in structure, easy and convenient to operate and wide in applicability.

Description

technical field [0001] The invention relates to the technical field of rock mechanics experiments, in particular to an experimental device and an experimental method suitable for rock mass circulation shear seepage under high temperature and high pressure. Background technique [0002] The thermal-fluid-solid coupling characteristics of jointed rock mass under cyclic shear is one of the important basis for understanding the activation of deep geothermal reservoirs, nuclear waste underground reservoirs, and fault activation in volcanic belts under seismic loads. At present, there are two main types of shear seepage equipment for rock mass under high temperature and high pressure, namely direct shear equipment and triaxial compression shear equipment. These two types of equipment can realize the single-pass shear seepage test under high temperature and high pressure; however, due to structural defects, neither can realize the cyclic shear process under high temperature and hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N15/08
CPCG01N3/24G01N15/0826G01N2203/0025G01N2203/0226G01N2203/0232
Inventor 张洪伟万志军赵毅鑫王骏辉李杨滕腾张村
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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