Device and method for testing thickness of outburst prevention layer for water inrush of tunnel

A test device and layer thickness technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve water pollution, easily induce large-scale water inrush, mud inrush, depletion and other problems

Active Publication Date: 2018-06-22
SHANDONG UNIV
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Problems solved by technology

The construction of long tunnels in karst areas often encounters problems such as rich water, high water pressure, underground rivers, karst caves, and faults. Excavation construction can easily induce large-scale water and mud inrush disasters; It will seriously damage the groundwater environment, change the groundwater seepage field and the relationship between replenishment and drainage, cause the reduction and depletion of groundwater resources, and lead to water pollution and destruction

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  • Device and method for testing thickness of outburst prevention layer for water inrush of tunnel

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0028] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a device and a method for testing the thickness of an outburst prevention layer for water inrush of a tunnel. The device comprises an underground water simulation device, a tunnel model, a simulated surrounding rock test box, a sensor, a data acquisition device, and a water and mud collection device; the underground water simulation device comprises a water source tank, a water pump, a water pipe and a gathered pressure water tank which are sequentially connected with one another; the gathered pressure water tank is connected with one end of the tunnel model, the otherend of the tunnel model is connected with the simulated surrounding rock test box, a plurality of partition plates, a stress detection unit and a simulated surrounding rock prepared from a similar simulating material are arranged in the simulated surrounding rock test box, the stress detection unit monitors and simulates the stress, the strain and the seepage parameter of the simulated surroundingrock, and the simulated surrounding rock breaks to simulate the water inrush when the pressure of the gathered pressure water exceeds the loading limit of the simulated surrounding rock; the water and mud collection device collects the burst water and mud after the simulation of water inrush; the sensor and the data acquisition device acquire the pressure and the flow of the supplied water flow.

Description

technical field [0001] The invention relates to a test device and method for the thickness of a tunnel water inrush prevention layer. Background technique [0002] my country's karst areas have a vast territory and complex groundwater environment. With the development of railway tunnel construction in the direction of long, large, and deep, the construction of railway tunnels in these areas will cause water inrush from karst structures to be the most serious construction geological disaster caused by humans. The construction of long tunnels in karst areas often encounters problems such as rich water, high water pressure, underground rivers, karst caves, and faults. Excavation construction can easily induce large-scale water and mud inrush disasters; It will seriously damage the groundwater environment, change the groundwater seepage field and the relationship between replenishment and drainage, cause the reduction and depletion of groundwater resources, and lead to water pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 杨为民丁若松李术才周宗青王美霞房忠栋闫章程赵瑞杰
Owner SHANDONG UNIV
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