Water drain device for top buffer layer of karst tunnel

A technology of drainage device and buffer layer, applied in drainage, safety device, mining equipment and other directions, can solve the problems of tunnel water seepage, hidden danger of tunnel safety, serious harm, etc., and achieve the effect of convenient installation and simple mechanism

Inactive Publication Date: 2016-02-17
SHANDONG UNIV OF SCI & TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the water in the buffer layer structure cannot be discharged in time, it will corrode the reinforced support below and even the tunnel body. Over time, it will cause water seepage in the tunnel, which will seriously affect the service life of the tunnel and bring unpredictable safety hazards to the operation of the tunnel. , if encountering other geological disasters, the damage will be more serious

Method used

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  • Water drain device for top buffer layer of karst tunnel
  • Water drain device for top buffer layer of karst tunnel
  • Water drain device for top buffer layer of karst tunnel

Examples

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Embodiment Construction

[0018] figure 1 Among them, a buffer layer drainage device at the top of a karst tunnel, which consists of an upper water inlet filter 2, a lower water inlet filter 3, an upper water inlet 1, a right-angle rod body 22, a lower water inlet 4, a connector 6, and activated carbon 5 , "S"-shaped connecting part 7, the main drain pipe 8 and the extended drain pipe 9. First, activated carbon is added into the connector 6 through the lower water inlet 4, and then the upper water inlet filter 2 and the lower water inlet filter 3 are connected to the upper water inlet 1 and the lower water inlet 4 respectively through screw connections, and then The extended drainage pipe 9 is connected with the main body drainage pipe 8 by thread to form the whole drainage device. The water in the buffer layer can be filtered from the lower water inlet 4 through the activated carbon 5 in the connector 6 to filter the fine sand in the buffer layer 15, and then through the "S"-shaped connection 7 and t...

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Abstract

The invention discloses a water drain device for a top buffer layer of a karst tunnel. The drain water device comprises an upper water inlet, a right-angle rod, a lower water outlet, a main water drain pipe and a lengthening water drain pipe. The upper water inlet and the lower water inlet are provided with an upper water inlet filter screen and a lower water inlet filter screen respectively to realize water filtration, the lower water inlet, a communication device and an 'S'-shaped connector are designed integrally, and activated carbon is put in the communication device to prevent fine sand of the buffer layer from flowing away. The water drain device for the top buffer layer of the karst tunnel has the advantage that adverse effects of water accumulated in the buffer layer on a tunnel body can be effectively prevented.

Description

technical field [0001] The patent of the present invention is a new type of drainage device design, especially a drainage device suitable for the top buffer layer of karst tunnels. Applied in the field of tunnel drainage. Background technique [0002] As we all know, the construction of karst tunnels is faced with severe floods. Although the corresponding blocking and drainage measures have been taken during the construction process, the drainage of local locations is still not perfect. Especially when various large-scale karst caves are encountered in the construction of karst tunnels, the top of the initial support of the tunnel is strengthened, and a buffer layer is applied. Generally, it is constructed by filling quicksand, and the water storage structure composed of buffer layer and retaining wall makes the upper part of the tunnel have a certain amount of accumulated water. If the water in the buffer layer structure cannot be discharged in time, it will corrode the r...

Claims

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Application Information

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IPC IPC(8): E21F16/02
Inventor 王清标施振跃温小康其他发明人请求不公开姓名
Owner SHANDONG UNIV OF SCI & TECH
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