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Two-dimensional rock sample seepage testing device

A rock sample and test device technology, which is applied in the direction of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem that the two-dimensional rock sample cannot be loaded with extrusion force and shear force and other problems, to achieve the effect of low cost, high control precision and small size

Inactive Publication Date: 2016-04-13
BEIJING UNIV OF TECH
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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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  • Two-dimensional rock sample seepage testing device

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Embodiment Construction

[0059] The present invention aims at the problem of high cost of the horizontal force loading mechanism in the rock sample seepage test device in the prior art, and provides a two-dimensional rock sample seepage test device, which can be applied to the joint action of the stress field and the water flow field in rock cracks Under the experimental study of the failure mechanism.

[0060] It should be noted that the horizontal force loading mechanism in the following embodiments is described as a part of the two-dimensional rock sample seepage test device. Of course, in other embodiments of the present invention, the horizontal force loading mechanism can also be used alone or as an accessory mechanism of other equipment.

[0061] In an exemplary embodiment of the present invention, a two-dimensional rock sample seepage test device is provided. In this embodiment, the test object is a square bluestone slab A, the size of which is: length 500mm, width 500mm, thickness 10-20mm. ...

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Abstract

The invention provides a two-dimensional rock sample seepage testing device. In the two-dimensional rock sample seepage testing device, a lateral force loading mechanism comprises an air compressor, a pressure increasing valve, an electricity-controlled proportional valve and other devices. The two-dimensional rock sample seepage testing device is small in size, high in control precision and low in cost, can simulate the mechanism and characteristic test of a rock sample under the combined action of a stress field and a water flow field, is suitable for the failure mechanism experimental study of a rock fracture under the combined action of the stress field and the water flow field, and further has a higher practical value.

Description

technical field [0001] The invention relates to the field of geotechnical engineering measuring instruments, in particular to a two-dimensional rock sample seepage test 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 mass are significa...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/0806
Inventor 马国伟王秋生董茜茜
Owner BEIJING UNIV OF TECH
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