Waterproof construction method for engineering joint of tunnel
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A construction method and technology of tunnel engineering, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as poor waterproof reliability
Inactive Publication Date: 2019-11-05
YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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Problems solved by technology
[0005] The invention provides a waterproof construction method for tunnel engineering joints, so as to solve the problem of poor waterproof reliability of circumferential construction joints and deformation joints
Method used
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Embodiment 1
[0045] refer to figure 1 , shows a flow chart of a tunnel engineering joint waterproofing construction method. This method can form figure 2 , image 3 As shown in the tunnel structure, the waterproof structure includes a lining 10, a grouting pipe 11, a grouting nozzle 12, and a buried pipe groove 13. The method may specifically include the following steps:
[0046] S101, setting up a buried pipe groove at the leakage site and clearing the sundries in the buried pipe groove, wherein the width of the buried pipe groove is the centerline of the leakage seam at the leakage site, and the buried pipe groove is The depth of the pipe groove is not less than half of the wall thickness of the tunnel;
[0047] In a specific application, pipe-buried grooves are set up for the circumferential construction joints and deformation joints of the tunnel where water leakage occurs, and the width of the pipe-buried grooves is centered on the leakage seam at the leakage location. For exampl...
Embodiment 2
[0058] refer to Figure 4 , shows a flow chart of another construction method for tunnel engineering joint waterproofing. This method can be applied to figure 2 , image 3 shown in the tunnel structure, forming Figure 5 The waterproof structure shown, combined with Figure 2 to Figure 5 , the waterproof structure includes lining 10, grouting pipe 11, grouting nozzle 12, buried pipe groove 13, drain valve 14, quick-drying cement 15, waterproof reinforcement layer 16, waterproof additional layer 17, waterproof final layer 18, the method is specific May include the following steps:
[0059] S201, setting up a buried pipe groove at the leakage site and clearing the sundries in the buried pipe groove, wherein the width of the buried pipe groove is the centerline of the leakage joint at the leakage site, and the buried pipe groove is The depth of the pipe groove is not less than half of the wall thickness of the tunnel;
[0060] In the specific application, a buried pipe gro...
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Abstract
The embodiment of the invention provides a waterproof construction method for an engineering joint of a tunnel. The waterproof construction method is applied to a leakage part of a circumferential construction joint or a deformation joint of the tunnel. The waterproof construction method comprises the following steps: forming a pipe laying groove in the leakage part and eliminating sundries in thepipe laying groove; fixing a grouting pipe in the pipe laying groove; filling the grouting pipe full with a grouting material by a grouting nozzle by a grouting pump according to a preset pressure; when the grouting pipe is filled with the grouting material, stopping grouting and cutting and cleaning the grouting nozzle; and repairing residual holes after the grouting nozzle is cut so as to forma smooth basal plane on the lining inner wall of the tunnel. According to the waterproof construction method for the engineering joint of the tunnel, by means of process innovation, for example, groove removing, pipe laying, grouting and etc, in the leakage part of the engineering joint, the grouting material in the gap is full, and the waterproof reliability of the circumferential construction joint and the deformation joint of the tunnel is improved.
Description
technical field [0001] The invention relates to the field of waterproofing, in particular to a waterproof construction method for tunnel engineering joints. Background technique [0002] In recent years, with the vigorous construction of projects such as high-speed railways, subways, highways, and urban comprehensive pipe corridors, there are a large number of tunnel projects in these projects, and the problem of water leakage during tunnel operation has attracted more and more attention from all parties. Because the tunnel seepage water will be directly related to the safety, reliability and durability of the tunnel during operation. [0003] At present, buried waterstops are widely used in tunnels, and have the ability to adapt to the expansion and deformation of concrete with the elasticity and structural form of rubber materials, so as to effectively prevent water leakage and seepage of building components by fastening and sealing. [0004] However, due to construction ...
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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38E21D11/10
CPCE21D11/10E21D11/38
Inventor 魏征李晓亮黄金星李林飞程伟家
Owner YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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