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Dam joint structure and construction method thereof

A technology of joint structure and dam body, which is applied in the direction of infrastructure engineering, underwater structures, artificial islands, etc., to achieve the effect of short construction period, conducive to soil and water conservation, and significant benefits

Active Publication Date: 2009-12-16
POWERCHINA HUADONG ENG COPORATION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a dam joint structure and its construction method that does not affect the operation of railways and highways and meets the requirements of hydropower project hubs, aiming to solve the foundation strength and anti-seepage problems of dam joints under poor geological conditions , shorten the construction period, simplify the construction process, reduce the waste slag site, which is conducive to water and soil conservation and saves engineering investment

Method used

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  • Dam joint structure and construction method thereof
  • Dam joint structure and construction method thereof

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Embodiment Construction

[0021] Such as figure 1 , figure 2 Shown, have the dam body 4 of adjacent building 6, highway 5, weathered rock mass 9 and gravel material, the feature of the present invention is to build mutual between the middle part of dam body 4, adjacent building 6 and highway 5 The connected concrete core wall 1 and the concrete cut-off wall 2 form a dam joint at the joint.

[0022] The dam joint is made into a U-shaped groove at the connecting end of the concrete core wall 1, and the wall thickness of the core wall at the location of the U-shaped groove is at least twice the thickness of the cut-off wall to ensure the connection effect of the joint part; The connecting end of the seepage wall 2 is made into a "one" shape that can be sealed and fitted with the U-shaped groove, and the end is made into a semicircle that fits with the U-shaped groove, see Figure 5 .

[0023] A slanted wall should be reserved at the junction between the adjacent building 6 and the concrete core wall 1...

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Abstract

The invention relates to a dam joint structure and a construction method thereof. The invention solves the technical problem of providing a dam joint structure which has no influence on railway and highway operation and meets the requirements of a hydropower engineering pivot and a construction method thereof, is aimed at solving the problems of basic strength and seepage prevention of the dam joint structure under a poor geological condition, shortening construction period, simplifying construction process and reducing residue sites, contributes to soil and water conservation, and saves engineering investment. For solving the problem, the method adopts a technical proposal that: the dam joint structure is provided with adjacent buildings, a road, a weathered rock and a gravel dam body,; and the joint structure of the dam is characterized by constructing a concrete core wall and a concrete anti-seepage wall in the middle of the dam body and between the adjacent buildings and the road to form the dam joint structure at a connecting position. The dam joint structure and the construction method thereof are applicable to water conservancy and hydropower engineering.

Description

technical field [0001] The invention relates to a dam joint structure and a construction method thereof. Applicable to water conservancy and hydropower projects. Background technique [0002] Generally, hydropower projects have high requirements for anti-seepage of the foundation and seepage around the dam. The structural foundation of the dam joint should preferably be located on the bedrock, but when encountering complex foundations such as landslides, artificial slag, gravel and clay, etc. When the conditions are close to railways or highways, the excavation of slope foundations is greatly restricted or even impossible to construct. The problem of building water conservancy and hydropower projects on plain rivers is very prominent. For a long time, there is an urgent need for a dam joint structure type and construction method to solve the difficulty of excavating the foundation of the dam joint and cutting off the road during the construction period. The bearing capacit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/16E02B7/00E02D29/16
Inventor 扈晓雯汤旸于青朱安龙
Owner POWERCHINA HUADONG ENG COPORATION LTD
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