A composite geomembrane core wall covering method connection structure and construction method
A technology of composite geomembrane and construction method, which is applied in the direction of infrastructure engineering, construction, protection devices, etc., can solve the problems of water leakage and connection problems between composite geomembrane and plinth board, and achieve the effect of solving the difficulty of anchoring construction
Active Publication Date: 2022-07-05
POWERCHINA HUADONG ENG COPORATION LTD +1
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[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a composite geomembrane core wall casing method connection structure and construction method to solve the problem of "zigzag" composite construction of the weir (or dam) in layers. The problem of connecting the geomembrane core wall and the plinth, avoiding engineering problems such as water leakage at the joint between the composite geomembrane and the plinth
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[0031] In order to make those skilled in the art better understand the technical solutions of the present invention, the preferred embodiments of the present invention will be described below in conjunction with specific examples, but it should be understood that the accompanying drawings are only used for illustrative description, and should not be construed as a reference to the present invention. Limitation; in order to better illustrate this embodiment, some parts of the drawings will be omitted, enlarged or reduced, which do not represent the size of the actual product; for those skilled in the art, some well-known structures and their descriptions in the drawings may be The omission is understandable. The positional relationships described in the drawings are only for exemplary illustration, and should not be construed as a limitation on the present patent.
[0032] like Figures 1 to 4 As shown in the figure, this embodiment is a composite geomembrane core wall coverin...
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The invention discloses a composite geomembrane core wall connection structure and a construction method, comprising a dam body, a concrete toe plate and a composite geomembrane core wall embedded in the dam body, and is characterized in that: the concrete toe plate is characterized in that: A toe plate groove is opened along the direction of the anchoring track line of the geomembrane. A plurality of screws arranged at intervals are anchored in the toe plate groove. The top of the screw rod located in the toe plate groove is sequentially penetrated with an SR leveling layer and a "zigzag" shape. Prefabricated mantle, SR anti-seepage cover sheet, flat steel cover, spring washer and nut, and the toe plate groove is densely filled with a concrete protective layer, and the lead-out part of the prefabricated mantle is connected to the composite geomembrane The bottom of the core wall is fixedly connected. The connecting structure of the invention is convenient for construction, simple in structure and reliable in type, and at the same time, the reliability of the connection between the composite geomembrane and the bank toe board is improved by adopting elastic polymer materials such as SR primer for leveling, edge sealing, screw pre-tightening anchoring and other measures.
Description
technical field [0001] The invention relates to the field of hydropower and water conservancy engineering, in particular to a composite geomembrane core wall membrane-covered connection structure and a construction method. Background technique [0002] With the implementation of my country's western development strategy, the height and scale of earth-rock cofferdams have increased year by year. Due to the convenience and economy of construction, many cofferdams use core-wall composite geomembrane anti-seepage types, usually using anti-seepage walls. The anti-seepage type of composite geomembrane core wall. The technical difficulty of high earth-rock cofferdams also increases with the increase of the scale of the cofferdam. At the connection between the composite geomembrane and the bank toe board, in order to prevent the composite geomembrane from strain-concentrated damage, the composite geomembrane is often laid upward with a "zigzag" turn. Layout, "Zhi"-shaped folding hei...
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IPC IPC(8): E02D19/04E02D31/02B29C65/02
CPCE02D19/04E02D31/025B29C65/02Y02E10/20
Inventor 王永明崔恩豪任金明梁现培胡小禹邹任芯蔡建国
Owner POWERCHINA HUADONG ENG COPORATION LTD