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Tunnel drainage system

A tunnel drainage and tunnel technology, applied in drainage, mining equipment, earth-moving drilling, etc., can solve problems such as calcification crystal deposition and blockage, and achieve good results in solving deposition and blockage, solving later maintenance, and implementing good results.

Pending Publication Date: 2022-05-13
NO 5 ENG OF CHINA RAILWAY 19 BUREAU GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tunnel drainage system that prevents the plugging of calcification and crystallization of scupper holes. Thoroughly solve the problem of calcification crystallization and blockage of drainage pipes in tunnels

Method used

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Examples

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no. 1 example

[0033] see Figure 3 to Figure 5 In this embodiment, a tunnel drainage system for preventing the calcification and crystallization of the weep hole is set in the tunnel arch wall 10, and the tunnel arch wall 10 includes primary support 11 arranged in sequence from outside to inside along the radial direction of the tunnel, waterproof layer 12 and secondary lining 13, the bottom of the tunnel arch wall 10 is provided with an inverted arch 15 and a trench cable channel section 14 extending along the longitudinal direction of the tunnel, and the trench cable channel section 14 is provided with a side wall extending along the longitudinal direction of the tunnel Edge gutter 141 and cable groove 142. The inverted arch 15 is connected to the secondary lining 13 through a low side wall 16 , and the trench cable channel section 14 is located on the side of the low side wall 16 away from the primary support 11 .

[0034] The tunnel drainage system includes a plurality of circumferenti...

no. 2 example

[0046] As the description of the second embodiment of the construction method of the horizontal drain pipe in the tunnel drainage system of the present invention, only the differences from the first embodiment of the construction method of the horizontal drain pipe in the tunnel drainage system described above will be described below.

[0047] see Figure 7 , the horizontal drain pipe 24 of this embodiment is set after the construction of the low side wall 216 is completed and before the construction of the cable channel section 214 of the trench.

[0048] The construction method of the horizontal drain pipe 24 of the present embodiment includes: first, using a drilling rig, the side wall 2161 of the side wall 216 away from the initial support 211 is drilled towards the side of the initial support 211 to set up the drain hole 217, and the water is drained. The inner end of the hole 217 extends to the end of the longitudinal drain 23 and / or the circumferential drain 2 . Next, ...

no. 3 example

[0053] The construction method of the horizontal drain pipe in the tunnel drainage system in this embodiment is the construction method for the second embodiment of the tunnel drainage system.

[0054] see Figure 8 , if the horizontal drain pipe 34 in the second embodiment of the tunnel drainage system is set after the construction of the trench cable channel section 314 is completed, the specific construction method includes the following steps. First, using a drilling rig, a drain hole 317 is drilled from the outer wall 3141 of the gutter cable channel section 314 through the side gutter 341 and toward the side of the primary support 311. The longitudinal gradient of the drain hole 317 is greater than or equal to 5%. The inner end of the drain hole 317 passes through the initial support 311 and extends into the surrounding rock 300 radially outside the initial support 311 . Next, install the PVC drain pipe 35 in the second drain hole section 3172 in the surrounding rock 30...

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Abstract

The invention provides a tunnel drainage system which is arranged in a tunnel arch wall, the tunnel arch wall comprises a primary support, a waterproof layer and a secondary lining which are sequentially arranged from outside to inside in the radial direction of a tunnel, and a side ditch extending in the longitudinal direction of the tunnel is formed in the bottom of the tunnel arch wall; the tunnel drainage system comprises an annular drainage pipe, a longitudinal drainage pipe and a transverse drainage pipe, the annular drainage pipe is located between the primary support and the waterproof layer, the longitudinal drainage pipe is embedded in the bottom of the tunnel arch wall and extends in the longitudinal direction of the tunnel, and the inner end of the transverse drainage pipe is communicated with the longitudinal drainage pipe and / or the annular drainage pipe. The water outlet end of the transverse water drain pipe extends to the side ditch; the inclination of the transverse water drainage pipe is larger than or equal to 5%, the water outlet end of the transverse water drainage pipe is bent downwards and extends downwards to the position close to the bottom wall of the side ditch, and an exhaust hole is formed in the top of the bent position of the transverse water drainage pipe. The tunnel drainage system can thoroughly solve the problem that calcification crystals of the drainage pipeline in the tunnel are deposited and blocked.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel drainage system for preventing calcification and crystallization of drain holes from being blocked. Background technique [0002] In the construction of tunnel engineering, in the structural design of the waterproof and drainage system, the lining drainage system is mainly formed by the ring drainage pipe, the longitudinal drainage pipe and the horizontal drainage pipe. With the construction of a large number of tunnels in Southwest my country, in the drainage facilities A more difficult problem has emerged: calcification crystals appear in the tunnel drainage pipes, and as time goes by, the siltation phenomenon in the pipes and nozzles gradually increases, and even the pipes are blocked, which directly affects the waterproof and drainage of the tunnel project. The system wreaks havoc, with serious repercussions. [0003] Through a number of scientific researc...

Claims

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Application Information

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IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 刘国强王海亮刘超姜波李占华王俊涛
Owner NO 5 ENG OF CHINA RAILWAY 19 BUREAU GRP
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