Anti-seepage device, shear box and using method of anti-seepage device

Abstract

The invention discloses an anti-seepage device, a shear box and a using method of the anti-seepage device, and belongs to the technical field of stress seepage coupling. The anti-seepage device comprises a flexible joint, a plugging piece, a filling piece, a piercing piece and an extruding piece, wherein the filling piece can penetrate through a drill hole to be communicated with a seepage hole; the first end of the flexible joint is arranged in the drill hole, and a flow channel is formed in the flexible joint; the plugging piece is fixedly arranged at the first end of the flexible joint; the extruding piece can be arranged in the flow channel, and the outer diameter of the extruding piece is larger than the inner diameter of the flow channel; and the piercing piece is fixedly arranged at the end part of the extruding piece, and the piercing piece can penetrate through the plugging piece to enter the seepage hole. According to the anti-seepage device, the shear box and the using method of the anti-seepage device, the waterproof effect of a stress seepage coupling experiment can be guaranteed, and it is guaranteed that the experiment result is accurate.

Description

technical field [0001] The invention relates to the technical field of stress seepage coupling, in particular to an anti-seepage device, a shear box and a method for using the anti-seepage device. Background technique [0002] Under the action of in-situ stress, the rock mass of the high and steep slope is subjected to a shear force directed to the space, and the rock mass will rheology under the long-term action of the shear force; under the condition of continuous rainfall, the internal rock mass of the high and steep slope Due to the existence of voids and fissures, a water column with a height of 100 meters will be formed in the body. Therefore, under the action of high water pressure, the high water pressure will change the stress state of the rock mass inside the slope, deteriorate the physical and chemical properties of the rock mass, and cause the rheological rate to accelerate. , resulting in slope instability. [0003] In order to explore the influence of high wat...

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Problems solved by technology

[0004] The invention provides an anti-seepage device, a shear box and a method for using the anti-seepage device, which solves or partially solves the problem of the sealing performance of the seepage hole of the rock test piece in the prior art when the stress-seepage coupling experiment is carried out, resulting in waterproof The effect cannot be guaranteed, and the technical problems that affect the experimental results

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