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Test method for simulating gas extraction under action of shear stress

A gas extraction and simulation test technology, which is applied in the direction of applying stable shear force to test material strength, fuel oil test, material inspection, etc. And other issues

Active Publication Date: 2016-09-21
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing similar simulation experiments cannot simulate the gas drainage under the action of shear stress, and cannot study the influence of shear stress on gas drainage, and the influence of various physical parameters on gas drainage under the action of shear stress

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  • Test method for simulating gas extraction under action of shear stress
  • Test method for simulating gas extraction under action of shear stress
  • Test method for simulating gas extraction under action of shear stress

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Embodiment Construction

[0034] The embodiments of the present invention are described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The following description of the embodiments by referring to the drawings is exemplary, and is intended to explain the present invention, but should not be understood as a limitation to the present invention.

[0035] In the description of the present invention, it should be noted that if there are the terms "center", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical" "," "horizontal", "top", "bottom", "inner", "outer" and other indicating orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, only for the convenience of describing the present invention and simplifying the description. It does not indicate or i...

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Abstract

The invention discloses a test method for simulating gas extraction under the action of shear stress. The method comprises the steps of previous preparation, molded coal compaction, load test piece preparation experiment, normal stress application, vacuum pumping, gas adsorption, shearing test, same-group other tests and experiment data processing, wherein a test piece is loaded in a test box with a shearing box provided therein. The test method for simulating gas extraction under the action of shear stress is convenient for researching the influences of the depth, the gas pressure, the coal rock kind, the shearing displacement rate and other parameters on gas extraction.

Description

Technical field [0001] The invention belongs to the field of gas drainage research, and specifically relates to a gas drainage simulation test method under shear stress. Background technique [0002] At present, with the development of society, more and more mineral resources under complex geological conditions are being explored and developed. Due to the extremely complex geological conditions, mechanical problems in the process of mineral mining are critical to the rational selection of mining methods and structural parameters, and to improve mining. Strength, rational use of mineral resources, ensuring the safe operation of workers, and ultimately improving the economic benefits of mineral mining are all particularly important. Due to the complexity of geological conditions, computer numerical simulation cannot fully and accurately reflect the influence of various parameters in the mining process under specific conditions. [0003] Therefore, at present, most of the similar sim...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N33/22
CPCG01N3/24G01N33/222
Inventor 刘义鑫尹光志许江张超林彭守建陈月霞王威吴善康武雪峰唐勖培
Owner CHONGQING UNIV