A treatment method for tunnel lining seepage water
A water seepage and lining technology, applied in tunnel lining, tunnel, shaft lining and other directions, can solve the problems of corroded steel bars, single treatment method, leakage, etc., to prevent water seepage, good filtering effect, good water stop effect Effect
Active Publication Date: 2017-12-05
张忠宝
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Problems solved by technology
Due to water leakage in the tunnel, the air humidity in the tunnel increases, causing damage to rails, communications, lighting and other facilities; water leakage through the lining will accelerate the carbonation rate of the concrete, corrode the steel bars, damage the lining structure, and reduce the service life of the tunnel
[0003] The Chinese Patent No. CN102108873 discloses a grouting method for rapid treatment of tunnel leakage water. This method only seals the cracks by "blocking" to achieve the goal of treatment, but strong plugging will increase the lining back. The pressure of the accumulated water, causing new leakage in other weak parts of the lining
[0004] At present, the treatment of seepage water is mainly based on "blocking", and some are treated by diversion and drainage. These are relatively simple treatment methods and cannot effectively control the seepage water
Method used
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[0030] The present invention will be further described below in conjunction with accompanying drawing.
[0031] see figure 1 , figure 2 , image 3 and Figure 4 , the tunnel lining leakage water treatment method provided by the present invention, the construction steps are as follows:
[0032] Step 1. Observe the crack 1, and select the point as the drilling point of the water diversion hole. For a single crack, select a place in the middle and lower part as the drilling point. When multiple cracks intersect, set a water diversion hole point at the intersection, and then set a water diversion point in the middle and lower part. The number of water diversion holes can be increased according to the increase of crack length and water seepage, and should not be too many. When there is water leakage, dripping or large water seepage in the cracks, add water diversion hole marking points in the upper and middle parts.
[0033] Step 2. Take the 2 points of the upper water diver...
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The invention discloses a treatment method for tunnel lining leakage water. It includes the following steps: select the point of the water diversion hole, use a hand-held concrete cutting machine to cut along the crack, chisel away the concrete to form an inverted trapezoidal groove, and cut the line along the crack from the lining surface above the water diversion point at a high place. Below the water diversion point, cut the groove from the bottom of the groove along the crack, chisel away the concrete to form a rectangular groove whose depth is greater than the width, clean the groove, and use epoxy resin mortar to grout the rectangular groove to block the leakage water. Drill the water diversion hole to lead out the water seepage, install the composite water-swellable rubber strip in the groove, fix it to form a water diversion channel, and seal the gap between the composite water-swellable rubber strip and the groove wall with waterproof glue, and finally use hydrophilic Epoxy mortar is used to fill the inverted trapezoidal groove, and the surface is plastered to complete the whole process. The water flow flows into the groove through the water diversion hole, is introduced into the bottom of the cable trench, drains to the side groove, and flows out of the hole.
Description
technical field [0001] The invention relates to a method for treating leakage water, in particular to a method for treating leakage water in tunnel lining for rectifying tunnel disease. Background technique [0002] With the continuous expansion of the operating mileage of highways and railways in our country, the number of tunnels continues to increase, and it is inevitable that there will be diseases during the tunnel operation stage, among which water leakage has an important impact on the safe operation of the tunnel. Due to water leakage from the tunnel, the air humidity in the tunnel increases, causing damage to facilities such as rails, communications, and lighting; water leakage through the lining will accelerate the carbonation rate of the concrete, corrode the steel bars, damage the lining structure, and reduce the service life of the tunnel. [0003] The Chinese Patent No. CN102108873 discloses a grouting method for rapid treatment of tunnel leakage water. This me...
Claims
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IPC IPC(8): E21D11/38E21D11/10E21F16/02
Inventor 周中王向灿张齐芳杨豪邢凯张彬然
Owner 张忠宝