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Test device and method for simulating fractured rock secondary diagenesis

A test device and rock mass technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve problems such as troublesome sampling process, lack of reliable theoretical basis for support, and influence of mechanical parameters

Active Publication Date: 2017-06-20
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the laboratory can only take out the original broken-consolidated regenerated rock mass from the mine to test its mechanical performance parameters, but this sampling process is very troublesome, and the broken-consolidated regeneration will also occur after cutting. The mechanical parameters of the rock mass are affected, so the data measured in the laboratory are not accurate
Since there is no equipment or device to reproduce the secondary diagenesis process of the broken-consolidated rock mass and monitor the mechanical behavior of the rock mass related to the secondary diagenesis, there is a lack of reliable theoretical basis for the support of this broken-consolidated rock mass , the support design in engineering practice has a large blindness

Method used

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  • Test device and method for simulating fractured rock secondary diagenesis
  • Test device and method for simulating fractured rock secondary diagenesis
  • Test device and method for simulating fractured rock secondary diagenesis

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Embodiment Construction

[0030] The present invention will be further described below.

[0031] Such as Figure 1 to Figure 10 As shown, a test device for simulating the secondary diagenesis of a broken rock mass includes an axial pressure plate 1, a confining pressure device, a chassis and a confining pressure applicator. On the pressure plate 10, the confining pressure device is a cylinder formed by splicing a plurality of arc-shaped plates 3 of the same shape. A plurality of confining pressure transmission pins 5 are arranged on both sides of the arc-shaped plate 3, and the confining pressure transmission The center of the pin 5 is provided with a mounting hole, and the confining pressure applicator is composed of a pressure rod and a pressurizer 7, the pressure rod passes through two overlapping mounting holes on the adjacent arc plate 3, and the pressure device 7 is set On the pressing rod; the shaft pressure plate 1 is arranged above the cylinder, and the diameter of the shaft pressure plate 1 ...

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Abstract

The invention discloses a test device and method for simulating fractured rock secondary diagenesis. The test device is composed of an axial compression disc, a confining pressure device, a chassis and a confining pressure applicator. The method comprises putting fractured rock into the test device, applying vertical pressure to the device through a rock mechanical test system, and recording pressure valve change cases to obtain fractured rock secondary regenerated rock and to know mechanical parameters in the whole secondary diagenesis process. The device and method realize simulation of fractured rock secondary diagenesis and convenient research of mechanical parameters of the fractured rock during the secondary diagenesis, can carry out a later mechanical test on the rock subjected to secondary diagenesis, and provides the reliable theoretical basis for retaining and protecting the secondary diagenesis of the fractured rock under a mine so that the engineering practical retaining and protecting design satisfies the mechanical properties of the rock.

Description

technical field [0001] The invention relates to a rock mass test device and method, in particular to a test device and method for simulating secondary diagenesis of broken rock mass. Background technique [0002] As the mining of mineral resources goes deep, the surrounding rock support of the mine faces more and more complex broken rock masses and regenerated rock masses that are compacted and consolidated by the broken rock masses and secondary diagenesis. This regenerated rock mass, which is compacted and consolidated through broken rock mass and secondary diagenesis, has quite different internal mechanical parameters from the original coal rock mass, so different support methods are also required for support. In order to study the mechanical parameters of this kind of regenerated rock mass, it is generally necessary to carry out mechanical tests of this kind of regenerated rock mass in the laboratory. After the law of its mechanical parameters is obtained, it can play a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/00
CPCG01N19/00
Inventor 王平朱永建冯涛余伟健李树清
Owner HUNAN UNIV OF SCI & TECH
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