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Integral construction method for air bag of tunnel sewer ditch

A technology of overall construction and sewage ditch, applied in drainage, earthwork drilling, mining equipment and other directions, can solve the problems of large consumption of formwork materials, slow construction progress, high cost, etc., to improve construction quality, reduce project cost, and ensure the quality effect

Inactive Publication Date: 2016-05-25
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction of sewage ditches has traditionally been prefabricated in a prefabricated field and assembled on site. The labor and machinery costs for prefabrication, transportation, and installation are high, and they are easily damaged during transportation and installation. The process is complicated, and the length of prefabrication is short. Slow, the integrity of the side ditch is poor, a special prefabricated site is required, and the consumption of formwork materials is large, especially in super long tunnels, the traditional construction technology is extremely uneconomical

Method used

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  • Integral construction method for air bag of tunnel sewer ditch
  • Integral construction method for air bag of tunnel sewer ditch
  • Integral construction method for air bag of tunnel sewer ditch

Examples

Experimental program
Comparison scheme
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Embodiment

[0041] The overall construction method of the tunnel sewage ditch airbag includes:

[0042] (1) Cleaning the working surface: Before construction, the base of the sewage ditch should be cleaned, and the joint surface of the sewage ditch and the cable trough should be chiseled to ensure that the concrete of the sewage ditch constructed after the construction is firmly bonded to the base and the wall of the cable trough. , will not crack or fall off. After chiseling the joint surface of the cable trough, clean the loose ballast and debris on the base of the sewage ditch, and rinse the joint surface and the base after the chisel with high-pressure water.

[0043] (2) Place the steel cage 1 and the air bag 2: After measuring and setting out, determine the location of the sewage ditch and the elevation control point. Position the pre-bundled steel cage 1 accurately, and check the steel wire joints and wire rolling head of the steel cage 1 (cut off the excessively long part of the ...

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Abstract

The invention relates to an integral construction method for an air bag of a tunnel sewer ditch, which comprises the following steps: cleaning up a related working plane at the position of the sewer ditch, and carrying out measurement and locating; placing a reinforcement cage, wherein the reinforcement cage comprises stirrups and longitudinal bars, and the arc stirrups which are of an integrated structure are adopted at the positions close to the inside of the sewer ditch; placing the air bag in a sleeve, drawing the sleeve and the air bag onto the arc stirrups in the reinforcement cage, and after mounting the sleeve and the air bag in place, inflating the air bag; when inflating the air bag to a set degree, pulling out the sleeve, and when continuing to inflate the air bag to a preset pressure, carrying out positioning and fixing on the air bag and the reinforcement cage by utilizing a fixing part; setting up a peripheral template of the reinforcement cage, and after closing a die, pouring concrete; after initial setting of the concrete, withdrawing the exhausted air bag out of the sewer ditch, and curing the concrete.

Description

technical field [0001] The invention relates to a tunnel drainage ditch construction technique, in particular to an integral construction method of a tunnel sewage ditch airbag. Background technique [0002] Every year in my country, the phenomenon of highway water damage caused by imperfect highway drainage facilities or insufficient service life is very serious. As the main component of highway drainage facilities, the construction quality of sewage ditch directly affects the drainage effect of the entire highway. The pavement sewage ditch is an important part of road tunnel pavement drainage, which can collect the water flow of the tunnel pavement and discharge the tunnel, which can effectively ensure the tunnel driving safety and the durability of the tunnel pavement. The construction of sewage ditch has traditionally been centrally prefabricated in a prefabricated field and assembled on site. The cost of labor and machinery for prefabrication, transportation, and instal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 李树忱廖麒凯李术才蒋树磊谢璨晏勤
Owner SHANDONG UNIV
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