Sample preparation and test integrated shearing device and method suitable for self-expanding medium

A shearing device and self-expanding technology, which is applied in the field of expansive materials and rock-soil media experiments, can solve the problems of long-term reinforcement performance that need further research, and achieve the effect of reducing stress dissipation and reducing experimental errors

Pending Publication Date: 2021-06-25
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its long-term reinforcement performance under high ground stress, high water pressure and high ground temperature needs to be further studied.

Method used

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  • Sample preparation and test integrated shearing device and method suitable for self-expanding medium
  • Sample preparation and test integrated shearing device and method suitable for self-expanding medium
  • Sample preparation and test integrated shearing device and method suitable for self-expanding medium

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Experimental program
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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as Figures 1 to 5 As shown, an integrated shearing device for sample preparation and testing suitable for self-expanding media includes an upper box body 1 and a lower box body 2, and the upper box body 1 and the lower box body 2 can be laterally slidably fitted and Locked vertically, the upper box body 1 is equipped with a pressure bearing platform 3 for providing normal pressure to the sample 12 .

[0034] Preferably, the upper box body 1 and the lower box body 2 are connected by a box body connector 4, the bottom of the box body connector 4 is fixed on the top of the lower box body 2, and the top of the box body connector 4 is provided with The chute 4.1 that slides with the edge wing plate 1.1 of the upper box body 1. After this design, such as figure 1 As shown, the upper box 1 and the lower box 2 can slide back a...

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Abstract

The invention discloses a sample preparation and test integrated shearing device and method suitable for a self-expanding medium. The shearing device comprises an upper box body and a lower box body, the upper box body and the lower box body can be in transverse sliding fit and vertically locked, and the upper box body is provided with a pressure bearing table for providing normal pressure for a sample. In addition, the invention further discloses a corresponding shear experiment method. Aiming at the expansion characteristics of expansion soft rocks and self-expansion materials in engineering, the stress-water-heat multi-field coupling working conditions during non-unloading are considered, so that a test target accords with engineering practice, and a means is provided for researching the non-unloading shear characteristics of engineering rock-soil bodies and reinforcing media.

Description

technical field [0001] The invention relates to the technical field of expansive materials and rock-soil media experiments, in particular to an integrated shearing device and method for sample preparation and testing suitable for self-expanding media. Background technique [0002] As the country's infrastructure construction advances towards a more severe environment, the scale of water conservancy, transportation, and national defense industry construction continues to expand, and the problems it faces are becoming more and more severe. On the one hand, under complex hydrogeological conditions such as high ground stress, high water pressure, and high ground temperature, problems such as large deformation of soft rock and rockburst lead to frequent disasters. Among them, the water-absorbing swelling of expansive soft rock is also an important reason for deep underground engineering catastrophe. However, so far most of the studies on the mechanical properties of expansive so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/02G01N1/28
CPCG01N3/24G01N3/02G01N1/28
Inventor 刘杰李运舟彭吕妍李轩宇孙荣琪宋瑞杨浩宇石谦杜卓兴陈子悦汪岩松郭建祥孙涛黎照李政
Owner CHINA THREE GORGES UNIV
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