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A static pressure rock impact funnel failure experimental device and method

A technology of failure experiment and static pressure, applied in the field of rock mechanics, can solve the problems of not being able to simulate the real situation well, the experimental range is not comprehensive, the safety performance is low, etc., and the test conditions are easy to achieve, the load can be adjusted in a large range, and the test The effect of load stabilization

Active Publication Date: 2018-04-06
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a static pressure rock impact funnel destruction experiment device and method, through the static pressure loading device and the dynamic pressure loading device to carry out experiments on the rock specimens respectively, and can carry out the dynamic pressure loading experiment At the same time, static pressure loading is carried out on the rock test piece, which solves the technical problems of low safety performance, incomplete test range and inability to simulate the real situation in the existing technology.

Method used

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  • A static pressure rock impact funnel failure experimental device and method
  • A static pressure rock impact funnel failure experimental device and method
  • A static pressure rock impact funnel failure experimental device and method

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Embodiment 1

[0044]The experimental system includes a static pressure loading device 26 and a dynamic pressure loading device 25 . The rigid frame 1 of the static pressure loading device 26 is connected by fastening bolts 2, the rigid frame 1 is provided with pin holes, the upper side force transmission plate 4 and the left side force transmission plate 5 are connected with the rigid frame 1 through the positioning pin 3, and the jack The support 10 is connected with the rigid frame 1 through the positioning pin 3, the right hydraulic jack 8 and the right force transmission plate 7 are placed on the jack support 10, the right hydraulic jack 8 is in close contact with the rigid frame 1, and the lower hydraulic jack 9 Placed on the rigid frame 1, the lower side force transmission plate 6 is placed on the lower side hydraulic jack 9. The hydraulic pump is connected with the hydraulic jack through the oil delivery pipe 11. Pressure gauges 12 are arranged on the right hydraulic pump 14 and the...

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Abstract

The invention provides an experimental apparatus and method for static-pressure rock impact tunnel destroy. A static-pressure loading device and a dynamic-pressure loading device are respectively used for experiments on a rock test piece; dynamic-pressure loading experiment can be carried out under static-pressure loading conditions; so the technical problems of low safety performance, an incomprehensive experimental scope and incapacity of perfectly simulating actual conditions in the prior art are overcome. The experimental apparatus and method provided by the invention can safely and accurately carry out rock impact tunnel destroy experiments; and the experiments have good repeatability and better accord with deep mining engineering conditions of an actual mine.

Description

technical field [0001] The invention belongs to the field of rock mechanics, and in particular relates to a static pressure rock impact funnel destruction experiment device and method. Background technique [0002] With the increase of people's demand for resources, the intensity of mining is gradually increasing, and the shallow resources are decreasing day by day. The mines at home and abroad have entered the state of deep resource mining one after another. During the mining process of deep mines, the rock mass is destroyed under the joint action of in-situ stress and impact loads such as explosions, and in-situ stress will affect the efficiency of ore mining or roadway excavation. Therefore, it is necessary to study the problem of rock impact failure under initial stress. [0003] At present, the loading methods used in the study of rock impact dynamics mainly include explosives and Hopkinson rod devices. Among them, explosives can be used in field deep rock mass blasti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/307
CPCG01N3/307
Inventor 张凤鹏彭建宇邱兆国李元辉冯夏庭陈庆凯戴星航
Owner NORTHEASTERN UNIV LIAONING
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