Method for mounting medium-deep buried water stop of tunnel archwall lining concrete toroidal construction joint

A technology of waterstop and concrete, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve problems such as the insecure fixation of buried waterstop, and achieve the effects of improving construction quality, positioning accuracy, and work efficiency

Inactive Publication Date: 2010-12-29
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
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  • Abstract
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Problems solved by technology

[0003] In order to solve the problems in the usual installation method of buried waterstops in the concrete ring construction joints of the tunnel arch wall lining, the present invention adopts the combination of steel formwork and wood formwork to form the formwork at the end of the formwork trolley, and the steel formwork solves the problem. The problem that the buried waterstop is not firmly fixed, the combination of steel and wood formwork solves the space problem for the construction personnel of the waterstop

Method used

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  • Method for mounting medium-deep buried water stop of tunnel archwall lining concrete toroidal construction joint
  • Method for mounting medium-deep buried water stop of tunnel archwall lining concrete toroidal construction joint
  • Method for mounting medium-deep buried water stop of tunnel archwall lining concrete toroidal construction joint

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Embodiment Construction

[0015] 1. Combination structure of end steel and wood formwork

[0016] The end steel formwork 8 is cut from a 10mm thick steel plate, the formwork width is 40cm, and the contour size of the arc is determined according to the clearance size of the tunnel design. For easy assembly, the formwork is divided into blocks and numbered, and holes are drilled at 10cm inside the formwork along the contour line of the trolley, with a hole distance of 50cm, corresponding to the holes drilled on the formwork of the trolley, the formwork is assembled according to the number and the steel formwork is fixed with M20 bolts on the trolley. Stagger the fastening bolts of the steel formwork, and weld the screw on the end steel formwork along the contour line of the trolley to the end steel formwork, with a circumferential distance of 50cm and a screw length of 10cm. Drill two holes on the 1m long 75 angle steel, the hole spacing is 50cm, and the wood formwork fastening bolts are pressed against...

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Abstract

The invention provides a method for mounting a medium-deep buried water stop of a tunnel archwall lining concrete toroidal construction joint, which comprises the following steps of: making a trolley in place; closing a template and fixing the medium-deep buried water stop to form an L shape by using a medium-deep buried water stop positioning hoop; casting and curing the concrete; and demolding, after an end wooden template is removed, straightening the medium-deep buried water stop positioning hoop and straightening the medium-deep buried water stop simultaneously so as to change the L-shaped medium-deep buried water stop into a straight medium-deep buried water stop. The method for mounting the medium-deep buried water stop simplifies the procedures of erecting and demolding of the end template of the trolley, increases the working efficiency, particularly increases positioning accuracy of the medium-deep buried water stop and perfectly protects the medium-deep buried water stop, and greatly improves the construction quality of the medium-deep buried water stop of the tunnel archwall lining concrete toroidal construction joint.

Description

technical field [0001] The invention relates to a method for installing a buried waterstop in a tunnel arch wall lining concrete ring construction joint. Background technique [0002] The tunnel lining waterproof and drainage system is an important part of the tunnel structure, and it is also an important measure to ensure the quality of the project. The construction quality of the drainage system is directly related to the quality of the tunnel project. The waterproof and drainage system of the current tunnel design mainly includes the waterproof layer between the primary support and the secondary lining, the drainage pipe between the waterproof layer and the primary support, and the water-stop system between the concrete ring construction joints of the lining of the arch wall. There are two main types of water-stop systems between the arch wall lining concrete circumferential construction joints, one is to use water-swellable rubber water-stop strips, and the other is to u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38E21D11/10
Inventor 刘俊成王军涛陈庆怀唐绍武李恒杰林琳徐腾蒋辉光
Owner ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
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