Sealing device for shear test under multi-field coupling action of rock fracture

A sealing device and shear test technology, which is applied in the field of rock mechanics, can solve the problems of easy water leakage and poor stability of the sealing device, and achieve the effect of continuous sealing and ensuring the sealing performance.

Pending Publication Date: 2016-11-23
SHAOXING UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of easy water leakage and poor stability of the sealing device in the existing rock shear seepage test, the present invention provides a sealing device that can effectively avoid water leakage and have good stability for the shear test under the multi-field coupling action of rock fissures. device

Method used

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  • Sealing device for shear test under multi-field coupling action of rock fracture
  • Sealing device for shear test under multi-field coupling action of rock fracture
  • Sealing device for shear test under multi-field coupling action of rock fracture

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] refer to Figure 1 to Figure 5 , a sealing device used for shear tests of rock fractures under the multi-field coupling action, including an upper pressing block, a lower pressing block and a sealing rubber sheet used for curling deformation with the increase of shear displacement during the shearing process, The rock test piece is placed in a rigid shear box, and the rock test piece is respectively placed with an upper press block and a lower press block on both sides of the shear direction, and a gap is left between the upper press block and the lower press block for placing the The gap of the sealing rubber sheet, the upper end of the sealing rubber sheet is connected with the upper pressing block, and the lower end of the sealing rubber sheet is connected with the lower pressing block; A hollow water storage chamber, the hollow water storage chamber on one ...

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Abstract

The invention discloses a sealing device for a shear test under multi-field coupling action of rock fracture. The sealing device comprises upper pressure blocks, lower pressure blocks and seal rubber sheets, and the seal rubber sheets are used for crimping and deforming along with increase of shear displacement in a shear process. Rock samples are put in rigid shear boxes, the upper pressure blocks and the lower pressure blocks are placed on two sides of the rock samples in the shear direction, and a gap allowing placement of each seal rubber sheet is reserved between each upper pressure block and the corresponding lower pressure block. The upper end of each seal rubber sheet is connected with the corresponding upper pressure block, and the lower end of each seal rubber sheet is connected with the corresponding lower pressure block. A hollow water storage chamber is formed between each seal rubber sheet and a fracture seepage surface of the corresponding rock sample, the hollow water storage chamber on one side is communicated with a water inlet, and the hollow water storage chamber on the other side is communicated with a water outlet. The sealing device for the shear test under multi-field coupling action of rock fracture is effective in avoiding of water leakage and high in stability.

Description

technical field [0001] The invention belongs to the field of rock mechanics, and relates to a sealing device in a rock fissure shear seepage test, in particular to a multi-field coupling considering rock fissure thermodynamics, hydraulics, mechanics, chemistry (Thermal-Hydrological-Mechanical-Chemical: THMC) Test piece sealing device under action. Background technique [0002] Large-scale deep underground rock mass projects such as nuclear waste treatment, natural gas and carbon dioxide underground storage, compressed gas energy storage, deep water conservancy and mining projects are usually built in fractured rock mass, and the multi-field coupling characteristics of underground deep fractured rock mass under the action of high seepage pressure It is a key factor related to the safety of this kind of underground engineering, and it has always been a hot spot in the field of rock mechanics. The rock fracture shear test system considering the coupling effect of THMC is an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/24
CPCG01N3/02G01N3/24
Inventor 李博蒋宇静夏才初杜时贵陈咭仟
Owner SHAOXING UNIVERSITY
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