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Seepage testing method

A test method and seepage technology, which is applied in the field of seepage test, can solve the problems of complex seepage law and affecting the seepage characteristics of joints, and achieve the effect of reducing cost and simple operation

Inactive Publication Date: 2018-09-07
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the vertical and shear stress acting on the joints can change the internal pore structure of the joints to a large extent, thereby affecting the seepage characteristics of the joints, making the seepage laws in the cracks more complicated, and many phenomena still cannot be explained clearly

Method used

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Experimental program
Comparison scheme
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Embodiment

[0056]This embodiment provides a seepage test method. The seepage test method provided by this embodiment is easy to operate and can reduce the cost of the seepage test.

[0057] see figure 1 , the seepage test method provided in this embodiment can be completed using the seepage test device 100 . The seepage test device 100 includes a water pump assembly 110 , a control system 120 , a pressing assembly 130 , a displacement sensor 140 and a pressure sensor 150 . The water pump assembly 110 is connected to the pressing assembly 130 , the pressure sensor 150 is connected to the water pump assembly 110 , the displacement sensor 140 is connected to the pressing assembly 130 , the control system 120 is connected to the water pump assembly 110 , the displacement sensor 140 and the pressing assembly 130 .

[0058] Specific steps are as follows:

[0059] see figure 2 , step S100, preparing a crack sample.

[0060] In this embodiment, before the seepage test is performed, the crac...

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Abstract

The invention provides a seepage testing method and relates to the field of rock hydraulics. The seepage testing method comprises the following steps: controlling a water flow rate introduced into a water injection hole of a pre-prepared crack test sample to be pre-set flow rate; detecting head difference of cracks of the crack test sample; detecting crack width of the crack test sample after pre-set normal stress is applied to the crack test sample; analyzing a mutual relation among the pre-set flow rate, the head difference and the crack width. The seepage testing method provided by the invention is simple to operate and the seepage testing cost can be reduced.

Description

technical field [0001] The invention relates to the field of rock hydraulics, in particular to a seepage test method. 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 utilization of underground space, rock seepage issues have also received increasing attention. C.Louis proposed the concept of rock hydraulics, which divided the underground rock mass into two parts: intact rock and cracks. Intact rock can be regarded as a homogeneous continuous medium. Therefore, the research work of intact rock seepage is relatively easy to carry out, and its research theory is also very mature. Relatively speaking, although rock mass fissures are small in volume, they have strong flow capacity and play a role in water conduction, which is an important channel for seepage to occur. Therefore, fissure seepage is an indispensable part of rock mass seepag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/0826
Inventor 周辉谢业统卢景景张传庆胡大伟龚春艳李华志
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI