Shear box applicable to rock joint shearing, seepage and coupling tests and test method

A technology of rock joints and shear boxes, which is applied in the fields of soil material testing and material inspection, and can solve problems such as inability to achieve water sealing effect and insufficient sealing means

Inactive Publication Date: 2013-02-27
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention mainly solves the technical problems that the lack of sealing means in the prior art and the inability to achieve a good water sealing effect etc.; provid

Method used

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  • Shear box applicable to rock joint shearing, seepage and coupling tests and test method
  • Shear box applicable to rock joint shearing, seepage and coupling tests and test method
  • Shear box applicable to rock joint shearing, seepage and coupling tests and test method

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Embodiment

[0028] First introduce the device structure that the present invention adopts, as figure 1 and figure 2As shown, the present invention comprises base plate 7, is arranged on base plate 7 both sides by bolt 5 and two side plates 1 that are vertically fixed with base plate 7, base plate 7 and side plate 1 are all made of steel, base plate 7 and two side plates 1 A cavity for placing the rock sample 4 is formed; a shear cushion block for fixing the rock sample 4 is arranged in the cavity; lateral seals for sealing water are respectively provided on the two sides of the two side plates 1 The water bag 2 and the servo oil source connected to the side sealing water bag 2 for pressurizing the side sealing water bag 2; a water inlet device and a water outlet device are also arranged in the cavity, and the water inlet device A monitoring device for monitoring data is also provided; the monitoring device is a water flow rate and a water pressure sensor 14; the shear pad includes a fro...

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Abstract

The invention relates to a shear box applicable to rock joint shearing, seepage and coupling tests and a test method. By the aid of the test box, water can be sealed strictly during shearing, and stable seepage water streams can be formed among joints. The shearing box is mainly composed of a bottom plate, a side plate, a lateral water sealing bag and a water inlet and outlet device. The shear box is characterized by the design of the lateral sealing bag and the method of water injection at the front end and water accumulation at the rear end. By the aid of the rock joint shearing, seepage and coupling test box, the shearing displacement within 20mm can be achieved, the seepage characteristic variation caused by dilation and contraction during rock joint shearing can be studied fully, a water head of 0.05-3.0MPa can be provided to provide conditions for studying the influence of water pressure on joint seepage fully, a minitype servo water pump is used for injecting water, stable water streams can be formed at one ends of joints, the seepage situation conforms to natural conditions, and shearing and seepage tests of joint samples under the effect of complex loads can be finished through the shearing box.

Description

technical field [0001] The invention relates to a shear cell and a test method, in particular to a shear cell and a test method suitable for a rock joint shear-seepage coupling test. Background technique [0002] In recent years, with the construction of large-scale projects such as water conservancy and hydropower, nuclear waste storage, and petroleum mining, the geological environment in which engineering rock masses are located has become more and more complex. As a factor that has an important impact on the stability of rock mass engineering, groundwater has been paid more and more attention by researchers. The interaction between joints in rock mass and groundwater often directly determines the stability and safety of engineering structures. Therefore, in-depth study of the seepage characteristics of joints in rock mass is very important to solve the problem of rock mass stability in practical engineering. [0003] Since the 1970s, the hydraulic coupling characteristic...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 荣冠侯迪王小江周创兵陈益峰
Owner WUHAN UNIV
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