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Shear-seepage coupling testing device for two-dimensional rock sample

A technology for rock samples and testing devices, which can be applied in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc. And other issues

Active Publication Date: 2016-06-08
HEBEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no shear-seepage coupling test device for two-dimensional rock samples in the prior art, and figure 1 The numerically controlled rock joint shear seepage test rig shown cannot realize the loading of two-dimensional rock samples and the application of extrusion and shear forces

Method used

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  • Shear-seepage coupling testing device for two-dimensional rock sample
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  • Shear-seepage coupling testing device for two-dimensional rock sample

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Embodiment Construction

[0044]In view of the lack of two-dimensional rock sample shear-seepage coupling test equipment, the present invention develops and manufactures a test system that can simulate the mechanical characteristics of rock samples under the joint action of stress field and water flow field, and can be applied to rock cracks under stress Experimental study on the failure mechanism under the joint action of the water field and the water flow field.

[0045] In an exemplary embodiment of the present invention, a two-dimensional rock sample shear-seepage coupled testing device is provided. In this embodiment, the test object is a square bluestone slab A, and its dimensions are: length 500mm, width 500mm, thickness 10-20mm. There is a through crack A1 processed in the middle of the bluestone slab. The position of the through crack is fixed and carved by an engraving machine. The side surface is naturally rough and unpolished.

[0046] figure 2 It is a schematic structural diagram of a t...

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Abstract

The invention provides a shear-seepage coupling testing device for a two-dimensional rock sample. The shear-seepage coupling testing device for the two-dimensional rock sample comprises an underframe, a sealing mechanism, a rock sample base, a longitudinal loading mechanism and a lateral loading mechanism, wherein a part above the underframe is divided into a sample introduction area and a test area, and a sliding rail is arranged between the sample introduction area and the test area; the sealing mechanism is used for sealing the two-dimensional rock sample, and a water inlet and a water outlet are respectively formed in the two sides, along a through crack, of the sealing mechanism; the rock sample base can freely slide on the sliding rail, and is used for transporting the horizontally placed two-dimensional rock sample to the test area from the sample introduction area; the longitudinal loading mechanism is fixed above the test area of the underframe, and has a liftable structure as a whole; the lateral loading mechanism is fixed above the test area of the underframe, and has a liftable structure as a whole; the lateral loading mechanism and the longitudinal loading mechanism are arranged in a staggered way. After the shear-seepage coupling testing device for the two-dimensional rock sample is used, the loading of the two-dimensional rock sample as well as the application of extrusion force and shear force for the two-dimensional rock sample can be reliably realized, so that the blank for the shear-seepage coupling testing device for the two-dimensional rock sample at home and abroad is filled up.

Description

technical field [0001] The invention relates to the field of geotechnical engineering measuring instruments, in particular to a two-dimensional rock sample shear-seepage coupled testing device. Background technique [0002] In recent years, with the construction of a large number of large-scale projects such as energy mining, nuclear waste treatment, water conservancy projects, and underground space utilization, rock seepage issues have attracted increasing attention. , fissure seepage has an important influence on the stability of rock mass engineering. On the one hand, cracks in rock mass are one of the important causes of water damage in underground engineering. On the other hand, the existence of cracks also greatly reduces the strength of rock mass. It is well known that fluid pressure in water-bearing pores can change the stress state in rock mass because water has little compressibility and easily transmits pressure. However, the deformation properties of the rock m...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/082
Inventor 马国伟董茜茜李芳刘潇夏从礼
Owner HEBEI UNIV OF TECH
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