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Making method of soft rock disintegration test sample under joint action of wet-dry alternation and stress

A technology of combined action and production method, applied in the field of soft rock disintegration, can solve the problems of low success rate of sample preparation, etc., and achieve the effect of low cost, high success rate, and simple sample preparation process

Active Publication Date: 2017-07-28
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the traditional cutting method, the soft rock cannot be processed into a regular cuboid sample and the success rate of sample preparation is low, which brings the problem that the disintegration test cannot be carried out under the combined action of wet and dry alternately and stress

Method used

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  • Making method of soft rock disintegration test sample under joint action of wet-dry alternation and stress

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Embodiment Construction

[0044] The structural features of the present invention will now be described in detail in conjunction with the accompanying drawings.

[0045] see figure 1 , the preparation method of the soft rock disintegration test sample under the joint action of wet-dry alternation and stress, the steps are as follows:

[0046] Step 1: Determine the size of the cuboid sample to be prepared:

[0047] According to the disintegration test requirements and the characteristics of the test device, determine the specific size of the disintegration test sample. For example, when using a disintegration test device under the combined action of wet-dry alternation and stress, if the net size of the cuboid sample box in the device is 200×200×100mm, then the disintegration sample is a cuboid and its size is 200×200×100mm.

[0048] Step 2: Make a cuboid (including cube) mold 3; the mold 3 is used to make a cuboid (including cube) sample; determine the internal size of the mold 3 according to the si...

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Abstract

The invention relates to a making method of a soft rock disintegration test sample under joint action of wet-dry alternation and stress. The making method includes steps: (1), determining size of the test sample; (2), making a square die; (3), pre-treating an original rock sample; (4), making cement mortar; (5), wrapping rock with the cement mortar in the die to form a cuboid disintegration test sample; (6), maintaining the sample for 28 days, and demounting the die; (7), after-treating the disintegration test sample; (8), preparing before a disintegration test. When the disintegration test sample is made under the joint action of wet-dry alternation and stress, conventional rock cutting methods cannot process soft rock into regular cuboid samples due to the fact that the soft rock is soft in texture and are low in sample making success rate. Aiming at the problem, the method can make the original sample into a regular cuboid needed for the test and is simple in process, low in cost and high in success rate. The sample made by the method can be used for simulating the soft rock disintegration test under the joint action of wet-dry alternation and stress.

Description

technical field [0001] The invention relates to the field of soft rock disintegration, in particular to a method for preparing a soft rock disintegration test sample under the combined action of wet and dry alternately and stress. Background technique [0002] The disintegration mechanism of rocks in the water level fluctuation zone is an important basis for evaluating the stability of rock mass in wading engineering. Usually, the disintegration process can be simulated and studied through rock laboratory disintegration tests, and the preparation method of rock samples for disintegration tests The rationality of the method, especially the rationality of the preparation method of the rock sample for the soft rock disintegration test, will directly affect the reliability of the test results. In the preparation of traditional rock disintegration samples, the rock sample is usually cut into a cuboid sample, but the soft rock is soft. When the sample is processed by the tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/36
CPCG01N1/28G01N1/36G01N2001/366
Inventor 张振华韩雷陈小川
Owner HEFEI UNIV OF TECH
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