Diaphragm wall seam waterproof method and diaphragm wall construction method based on same

An underground continuous wall and waterproof board technology, applied in water conservancy projects, infrastructure projects, artificial islands, etc., can solve the problems of hard damage of the formed wall, difficult construction, water leakage and sand production, etc., to ensure construction quality and economic benefits. Significant, simple process effects
CN101886402AActive Publication Date: 2010-11-17CHINA RAILWAY NO 3 GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY NO 3 GRP CO LTD
Publication Date
2010-11-17

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Abstract

The invention belongs to the technical field of diaphragm wall construction, in particular relates to a diaphragm wall seam waterproof method and a diaphragm wall construction method based on the same, and solves the problem that the conventional seam waterproof method easily causes an engineering accident. The diaphragm wall construction seam waterproof method comprises the following steps of: 1) binding a reinforcement cage, wherein one end face of the reinforcement cage is a concave circular arc surface and the other end face of the reinforcement cage is a convex circular arc surface, and the radius of the concave and convex circular arc surfaces is consistent with that of a joint pipe; and 2) welding iron sheet protective surfaces with the same shape on the concave and convex circular arc surfaces, and welding waterproof plates on inner and outer side surfaces of the reinforcement cage at the end of the concave circular arc surface, wherein the length of the outer side surface waterproof plate beyond the reinforcement cage is greater than that of the inner side surface waterproof plate beyond the reinforcement cage. The diaphragm wall seam waterproof method has the advantages that: the joint waterproof problem is radically solved; the economic effect is obvious; and the pulling of the joint pipe is not limited by time any more and substantially has no disturbance and damage to the diaphragm wall, so the construction quality of the diaphragm wall is guaranteed.
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Description

technical field

[0001] The invention belongs to the technical field of underground diaphragm wall construction during the excavation of deep and large foundation pits in water-rich areas or during the construction of subway stations, and in particular relates to an underground diaphragm wall joint waterproofing method and an underground diaphragm wall construction method based thereon. Background technique

[0002] The existing joint waterproofing technologies in the construction process of underground diaphragm walls mainly include:

[0003] ①The seam waterproof technology of the joint pipe method. This is a commonly used waterproof treatment method for underground diaphragm wall joints, that is, after the underground diaphragm wall is grooved and before concrete is poured, joint pipes are placed at both ends of the groove section, a steel cage is placed under the middle of the joint pipe, and then poured into an underground continuous wall. Wall, after the concrete of the...

Claims

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