Drainage system and method for a tunnel inverted arch

A technology for drainage systems and tunnels, which is applied in drainage, earthwork drilling and mining, liquid displacement machinery, etc. It can solve problems affecting tunnel operation safety, difficult maintenance and treatment, and inverted arch compression damage, and achieves operation and maintenance costs. Low, obvious energy-saving effect, and the effect of protecting structural safety

Active Publication Date: 2021-12-14
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the existing tunnel inverts, which usually do not have a drainage system, resulting in the inverts being damaged under pressure, causing quality problems, affecting tunnel operation safety, and difficult maintenance and management, etc., to provide a tunnel invert Drainage system and drainage method

Method used

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  • Drainage system and method for a tunnel inverted arch
  • Drainage system and method for a tunnel inverted arch
  • Drainage system and method for a tunnel inverted arch

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1-2 As shown, a drainage system for tunnel inverts according to the present invention includes a drainage device 1 and a fan part 2, the drainage device 1 includes a piston part, a water inlet pipeline and a water outlet pipeline, and the piston part includes a piston rod 31 and a piston cavity 32, the piston cavity 32 communicates with the water inlet pipeline and the water outlet pipeline respectively, the valve 4 is arranged on the water inlet pipeline and the water outlet pipeline, the fan part 2 is connected with the piston rod 31, The rotation of the fan part 2 can drive the piston rod 31 to perform piston movement.

[0039]Adopt the drainage system of a tunnel invert according to the present invention, when in use, the water inlet of the water inlet pipeline is connected to the place where the invert 82 needs to be pumped, and the water outlet of the water outlet pipeline is connected to the place where water can be drained , such as a water coll...

Embodiment 2

[0047] Such as Figure 3-4 As shown, the structure of the tunnel inverted arch drainage system according to the present invention is roughly the same as that in Embodiment 1, except that the piston components include at least two.

[0048] In this embodiment, two piston parts are used as an example. A transmission part 2 is connected between two adjacent piston rods 31. The transmission part 2 can be driven by an existing transmission mechanism, such as the transmission part 2 Including the rack and pinion assembly 6, the chute 52 is connected to image 3 The piston rod 31 on the right side in the middle can also be connected to the piston rod 31 on the left side in the figure, and the chute 52 is connected to the corresponding rack of the piston rod 31, and the rack is connected with a The roller 61 that slides. Each of the piston chambers 32 is connected with the water inlet pipeline and the water outlet pipeline, that is, a plurality of pumping and draining parts are prov...

Embodiment 3

[0051] Such as Figure 5 As shown, the structure of the tunnel inverted arch drainage system according to the present invention is roughly the same as that of Embodiment 2, the difference is that each of the piston rods 31 is connected to the chute 52, that is, each The piston rods 31 can all move through the chute 32, and each of the piston parts can drain water synchronously, that is, all the piston rods 31 can move up or down synchronously, or drain water asynchronously.

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Abstract

The invention discloses a drainage system and a drainage method for an inverted arch of a tunnel. The drainage system includes a drainage device and a fan part. The drainage device includes a piston part, a water inlet pipeline and a water outlet pipeline. The piston part includes a piston rod and a piston. cavity, the piston cavity communicates with the water inlet pipeline and the water outlet pipeline respectively, and valves are arranged on the water inlet pipeline and the water outlet pipeline, and the fan part is connected with the piston rod, and the rotation of the fan part can drive the The piston rod is used for piston movement. This device can use natural wind to drive drainage in daily situations, and can relieve the water pressure on the inverted arch without additional power drive, which is beneficial to energy saving. This device has a simple structure, low cost, low operation and maintenance costs, and can pass through The wind force discharges the groundwater at the inverted arch, effectively avoiding the compression damage of the inverted arch, which is conducive to ensuring the safe operation of the tunnel and reducing the cost and difficulty of maintenance and treatment.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a drainage system and a drainage method for an inverted arch of a tunnel. Background technique [0002] Construction of tunnels in areas with developed karst or rich groundwater often encounters unfavorable geological problems such as groundwater and high-pressure water-rich faults. Dealing with tunnel drainage problems is the key to reducing diseases. [0003] Inverted arches of traditional tunnel design usually do not have drainage systems, and the groundwater level below the inverted arches of tunnels is relatively low, so it is difficult to drain the groundwater below the inverted arches. If groundwater develops under the action of water pressure, the inverted arch will be in a pressure-bearing state, and the pressure will act on the primary support and secondary lining at the inverted arch, which will cause damage to the lining structure and cause uplift and defor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/02F03D9/28F03D9/46F04B17/02F04B23/06
CPCE21F16/02F03D9/28F03D9/46F04B17/02F04B23/06Y02E10/728Y02E10/72Y02B10/30Y02P80/10
Inventor 范雲鹤赵万强罗禄森喻渝郑长青周路军徐浩迪刘泽勇张莹秋翁杨周羽哲何思江李泳玲徐郅崴
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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