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A method for fixing and installing tunnel waterstops

An installation method and waterstop technology, which are applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of long time and time-consuming fixing of waterstops in steel clamp processing, and achieve high construction efficiency, simple procedures, and construction. The effect of staff reduction

Active Publication Date: 2019-09-06
HAIWEI ENG CONSTR CO LTD OF FIRSTHIGHWAY ENG CO LTD OF CCCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The conventional process needs to process a large number of steel fixtures, and at the same time, each fixture needs to be welded before installing the waterstop, which takes a long time. At least 4 people are required to install the waterstop for each cycle of inverted arch (according to 9m footage). The construction can only be carried out with cooperation, and the processing, installation and waterstop fixing of steel fixtures take a long time

Method used

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  • A method for fixing and installing tunnel waterstops
  • A method for fixing and installing tunnel waterstops
  • A method for fixing and installing tunnel waterstops

Examples

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Effect test

Embodiment 1

[0042] see figure 1 with figure 2 , the present invention provides a tunnel water stop fixed installation method, this tunnel water stop fixed installation method, including the following steps:

[0043] On the initial support side wall 200 of the inverted arch end 100, drill a hole 201 at a distance of 1001.5m from the inverted arch end, insert the anchor steel pipe 300 in the hole 201, and keep the inclination angle of the hole 201 horizontal;

[0044]The upper circulation mid-buried waterstop 110 is arranged inside the inverted arch end 100. After the mid-buried waterstop 400 and the upper circulation mid-buried waterstop 110 are overlapped, the first clamp 510 is used to fix the overlap ; After the first clamp 510 is fixed, manual inspection is required to ensure that the first clamp 510 firmly clamps the buried waterstop 400 .

[0045] A separate formwork 600 is set near the end of the buried waterstop 400 away from the end of the inverted arch 100;

[0046] The suppo...

Embodiment 2

[0069] This embodiment provides a fixed installation method for tunnel waterstops, please refer to figure 1 with figure 2 The difference between this fixed installation method of the tunnel waterstop and the fixed installation method of the tunnel waterstop in Embodiment 1 is that on the initial support side wall 200 at the end of the inverted arch 100, the distance from the end of the inverted arch is 1002m. Borehole 201 .

[0070] The fixed installation method of the tunnel waterstop provided in this embodiment is suitable for the case where the overall length of the buried waterstop 400 is greater than that of the buried waterstop 400 in the first embodiment.

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Abstract

The invention provides a tunnel waterstop fixing and mounting method, and belongs to the field of tunnel engineering. The tunnel waterstop fixing and mounting method comprises the following steps thata hole is drilled on a preliminary bracing side wall of an inverted arch end, an anchoring steel pipe is inserted into the hole, and the inclination angle of drilling is maintained to be horizontal;after a middle-buried type waterstop and an upper cyclic middle-buried type waterstop which is arranged in the inverted arch end are subjected to lapping joint treatment, a first fixture is adopted toconduct fixing at the lapping joint; a separation type template is arranged near one end, away from the inverted arch end, of the middle-buried type waterstop; a supporting frame is fixedly mounted at one end close to the preliminary bracing side wall, the supporting frame is tightly attached to the separation type template, and thus it is ensured that one end, away from the preliminary bracing side wall, of the supporting frame abuts against the middle-buried type waterstop; a second fixture is mounted at the end, extending out of the separation type template, of the middle-buried type waterstop; and the second fixture gets close to the anchoring steel pipe by pulling a chain block. Through the tunnel waterstop fixing and mounting method, consumable items can be saved, and accidents of waterstop damage and the like can be reduced.

Description

technical field [0001] The invention relates to the field of tunnel engineering, in particular to a method for fixing and installing a tunnel waterstop. Background technique [0002] The mid-buried waterstop is an important part of the waterproof structure of the tunnel. It is mainly used for the waterproof measures of the tunnel invert and the construction joint of the second lining. The concrete part is exactly half of the width of the water stop, the water stop cannot be damaged, and the line must be straight. There are many methods in the construction process of the buried waterstop in the side wall of the tunnel, but the main method is to fix the waterstop with steel bars. [0003] The self-made steel bar clamping method is conventionally used. Since the steel bar card deforms greatly during the process of processing and fixture electric welding, the fixed position is the bound steel bar. During the concrete pouring process, the steel bar will be displaced and deviated...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38
Inventor 张学义刘闽闽钟焱
Owner HAIWEI ENG CONSTR CO LTD OF FIRSTHIGHWAY ENG CO LTD OF CCCC