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Fracture network seepage test apparatus for two-dimensional rock sample

A rock sample, fracture network technology, used in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve problems such as fracture network testing of rock samples without two-dimensional

Active Publication Date: 2016-06-08
HEBEI UNIV OF TECH +1
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Problems solved by technology

However, in the prior art, there is no device for testing the fracture network of two-dimensional rock samples.

Method used

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  • Fracture network seepage test apparatus for two-dimensional rock sample
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  • Fracture network seepage test apparatus for two-dimensional rock sample

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Embodiment Construction

[0045]Aiming at the lack of two-dimensional rock sample seepage 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 in stress field and water flow Experimental study on the failure mechanism under the combined action of fields.

[0046] In an exemplary embodiment of the present invention, a two-dimensional rock sample fracture network 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. The bluestone slab is processed with a network of fissures, which are fixed in position and carved through by an engraving machine. The side surface is naturally rough and unpolished.

[0047] figure 2 It is a schematic structural diagram of a two-dimensional rock sample fracture network seepage t...

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Abstract

The invention provides a fracture network seepage test apparatus for a two-dimensional rock sample. The fracture network seepage test apparatus 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 four water penetration areas are respectively arranged at the four sides 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. The shear-seepage coupling testing device for the two-dimensional rock sample is designed specially by aiming at the two-dimensional rock sample, and 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; the fracture network seepage test apparatus for the two-dimensional rock sample has 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 fissure network 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 ma...

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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