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

A technology for fractured and broken zones and intelligent drainage, which is applied in the direction of drainage, lifting valves, mining equipment, etc., can solve problems such as blockage of circular drainage pipes, inability to function, and affect the effect of drainage and pressure reduction, so as to achieve strong drainage capacity and avoid excessive drainage. The effect of drainage

Active Publication Date: 2017-06-20
TONGJI UNIV +1
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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

Method used

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

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Embodiment Construction

[0043] In order to make the purpose of the present invention, technical solutions and innovations clearer, the present invention will be further described in detail in conjunction with the accompanying drawings:

[0044] Before laying the drainage network, a layer of geotextile 2 with better water permeability is laid on the inner side of the primary lining, which can effectively prevent rock debris from entering the drainage network and reduce the probability of drainage network blockage.

[0045] 1. When the drainage network is working normally

[0046] 1) All the manual valves 10 on the drainage pipes are in an open state, so that the drainage pipes are connected with each other to form a drainage network.

[0047] 2) When the water pressure in the fracture and broken zone is not high, the water pressure of the water pressure control valve 5 does not reach the set safety threshold, and the seal brush 5-1 does not rotate to the mouth of the drain pipe, so that the water pres...

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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...

Claims

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Application Information

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IPC IPC(8): E21F16/02F16K1/22F16K1/226
CPCE21F16/02F16K1/22F16K1/2261
Inventor 廖少明周文锋刘孟波门燕青秦青阳唐尧程池浩曹雨农陈孝华周海刚陈罡潘长洪何群华
Owner TONGJI UNIV
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