Tunnel emergency intelligent drainage system with cleaning function under high-water-pressure fracture zone

Abstract

The invention provides an emergency intelligent drainage system and particularly provides a tunnel emergency intelligent drainage system with the cleaning function under a high-water-pressure fracture zone. All annular drainage pipes are connected through standby longitudinal connecting pipes, and an emergency drainage net is formed, can automatically adjust the drainage amount according to the external water pressure of a lining under the condition of the high-water-pressure fracture zone and has the pipeline cleaning function. The emergency intelligent drainage system comprises the drainage net, and the drainage net comprises a plurality of annular drainage pipes which are mutually spaced and are connected through longitudinal blind pipes at the arch bottom. The system is characterized by further comprising the drainage net and water-permeable geotechnical cloth, and the drainage net further comprises waist longitudinal connecting pipes, longitudinal intersecting connecting pipes and water pressure control valves.

Description

technical field [0001] The invention relates to an emergency intelligent drainage network for tunnels with self-cleaning function, which is suitable for the emergency drainage structure when the mining tunnel construction passes through the fractured zone under high hydraulic pressure. The invention belongs to the technical field of tunnel waterproofing and drainage. Background technique [0002] Due to crustal movement and rock weathering, mountain fractures develop and rocks are broken, forming large and small fracture zones, some of which are tens of meters wide and run through the surface. Up to hundreds of meters. When the tunnel passes through these fractured and broken zones, the tunnel lining will bear huge water pressure on the upper part, which will seriously affect the safety of the project. In this case, drainage must be carried out to reduce the upper water pressure. [0003] The drainage system commonly used at present is a relatively mechanical, empirical an...

AI Technical Summary

Problems solved by technology

At present, in the absence of an effective way to dredge the drainage pipes, with the passage of tunnel operation time, rock debris will accumulate more and more, and the circumferential drainage pipes will be blocked, so the entire circumferential pipeline will not be able to function, seriously Affect the effect of drainage and pressure reduction

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