Concealed tunnel base plate water draining treatment method and structure thereof

A technology for drainage treatment and tunneling, which is applied in the direction of drainage, tunnels, tunnel linings, etc. It can solve problems such as groundwater siltation, achieve the effect of reducing pumping volume and saving pumping time

Inactive Publication Date: 2017-03-15
THE 5TH CONSTR COMPANY LTD OF CHINA RAILWAY 15TH BUREAU GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The underground water is collected and drained through the drainage conduit. The underground water in the drainage conduit flows from a high place to a low place under the action of gravity. The drainage conduit is flat in an ideal state, but in actual construction due to the If there are many sto

Method used

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  • Concealed tunnel base plate water draining treatment method and structure thereof
  • Concealed tunnel base plate water draining treatment method and structure thereof
  • Concealed tunnel base plate water draining treatment method and structure thereof

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] A method for treating drainage of the floor of a submerged tunnel, comprising step 110, setting a sump 45 at the lower part of the primary support concrete layer 1 of the tunnel, and excavating it with tools such as jack picks, electric hammers, and electric drills after the completion of the initial support concrete layer. sump 45.

[0036] The length of the sump 45 is preferably set to 30 cm, the height is preferably set to 30 cm, and the width is preferably set to 30 cm. The sump 45 with a volume of 9000 cubic centimeters can collect a certain amount of seepage water and underground water without overflowing The phenomenon.

[0037] Step 130, set baffle 46 on the upper part of sump 45, after sump 45 is dug and set up, set baffle 46 on the initial supporting surface above sump 45, baffle 46 is facing the top of sump 45 , The baffle plate 46 is pref...

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Abstract

A concealed tunnel base plate water draining treatment method comprises the steps that a water collecting pit is formed in the lower portion of a preliminary supporting concrete layer of a tunnel, and seepage water at a preliminary supporting bottom is drained to the water collecting pit; a baffle located at the upper portion of the water collecting pit and provided with a through hole is laid on the surface of the preliminary supporting concrete layer; a steel pipe penetrating through the through hole is arranged, one end of the steel pipe extends into the water collecting pit, and the other end of the steel pipe is connected with a self-priming pump for water pumping; after concealed tunnel construction is completed, the self-priming pump is removed, the steel pipe is grouted to seal the hole of the steel pipe, the water collecting pit can collect seepage water and underground accumulated water at the preliminary supporting bottom, a negative pressure is produced at a steel pipe port extending into the water collecting pit through the self-priming pump, the seepage water and the underground accumulated water flows out of the water collecting pit through the steel pipe, and the problem that a water body in the water collecting pit can be led out under the gravitational effect and accordingly water accumulation is caused is solved.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a drainage treatment method for the bottom plate of a buried tunnel and its structure. Background technique [0002] A tunnel is a building built underground or underwater or in a mountain, laying a railway or building a road for the passage of motor vehicles. According to its location, it can be divided into three categories: mountain tunnels, underwater tunnels and urban tunnels: mountain tunnels that pass under mountains or hills to shorten distances and avoid large ramps; The ones that pass through the seabed are called underwater tunnels; the ones that pass underground in cities to meet the needs of railways passing through large cities are called urban tunnels. [0003] After the tunnel is excavated, in order to stabilize the surrounding rock and ensure safe operation, it is necessary to build a layer of support structure with sufficient strength according to a certain o...

Claims

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Application Information

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IPC IPC(8): E21F16/02E21D11/38
CPCE21F16/02E21D11/38E21D11/383
Inventor 余杨孙峰伟宋延涛吴鸿胜马辉杰王小康曾少鹏
Owner THE 5TH CONSTR COMPANY LTD OF CHINA RAILWAY 15TH BUREAU GRP
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