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Rock sample uniaxial compression-resistant cooling test device and test method

A rock sample, uniaxial compressive technology, used in measuring devices, testing material strength using stable tension/compression, instruments, etc.

Pending Publication Date: 2021-06-22
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the technical problem of cooling high-temperature rock samples under the heat transfer of water, a test device and test method based on uniaxial compression and cooling of rock samples have been developed.

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  • Rock sample uniaxial compression-resistant cooling test device and test method
  • Rock sample uniaxial compression-resistant cooling test device and test method
  • Rock sample uniaxial compression-resistant cooling test device and test method

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, where the schematic embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0031] Such as figure 1 As shown, the present invention is based on a uniaxial compression test heat preservation water tank device, including a sealed water tank 3, a placement table 1, a rock sample 13, an upper block 4, a lower block 2, an insulated hot water tank 7, and a cold water tank 9. Stress-strain sensing sheet 5 and stress-strain data acquisition instrument system 6; a cylindrical cylinder for placing rock samples 13 is arranged in the sealed water tank 3, and a stress-strain sensing sheet 5 is arranged on the outer periphery of the rock sample, and the stress-strain sensing sheet 5 is arranged on the periphery of the rock sample. The sheet 5 is connected to a stress-strain da...

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Abstract

The invention discloses a rock sample uniaxial compression-resistant cooling test device and a test method. The rock sample uniaxial compression-resistant cooling test device comprises a placement table, an upper cushion block, a lower cushion block, a stress-strain induction sheet and a stress-strain data acquisition instrument, a standard rock sample is heated to a set temperature and placed in a sealed water tank, and the constant-temperature water flow rate is controlled; the rock sample is cooled step by step, a load is applied to obtain different test temperature values, a strain relation curve about the change of the rock sample is drawn along with the temperature and the load stress, and calculating to obtain the releasable strain energy of the rock mass unit. According to the method, the defects existing in research on physical and mechanical properties of rocks by adopting a watering cooling method can be avoided, and a feasible method can be provided for research on rockburst of surrounding rocks of hard and brittle tunnels by releasing strain energy in the rocks through relatively small temperature change.

Description

technical field [0001] The invention relates to a thermal insulation water tank device based on a uniaxial compression test, in particular to a uniaxial compression cooling device and a test method for a rock sample under temperature control. Background technique [0002] In the study of rockburst in hard and brittle rock, temperature has a great influence on the damage degree of rockburst. In order to reduce the influence of temperature on surrounding rock tunnels, many scholars have studied various cooling measures to suppress or weaken rockburst phenomena. However, due to the limitations of existing experimental equipment, many studies only focus on the rockburst mechanics of rocks at high temperatures, and most of the research on rock mechanics under cooling measures stays at the numerical simulation stage, which limits practical applications. Most of them implement cooling methods based on experience. Considering the insensitivity of experimental equipment to water an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
CPCG01N3/18G01N2203/0003G01N2203/0019G01N2203/0228G01N2203/0252
Inventor 邵珠山黄新彩薛涛朱意明韩邹红
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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