Flexible debris retaining dam structure and construction method thereof
A construction method and flexible technology, applied in the direction of barrages, dams, weirs, etc., to achieve the effects of simple construction, low cost and simple structure
Inactive Publication Date: 2015-04-22
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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[0004] The object of the present invention is to provide a flexible slag retaining dam structure with simple structure, fast construction and low cost and its construction method, which can not only effectively overcome the unfavorable geological conditions such as the overburden foundation, but also can be directly built on the overburden foundation, It adapts to the deformation and settlement of soft foundations, and at the same time has the functions of dam body drainage and retaining waste slag, so as to overcome the deficiencies of existing technologies
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[0019] Such as figure 1 and figure 2 As shown, a flexible dam structure of the present invention includes a dam 1 built on the covering layer foundation 4, and the dam 1 is gradually retreated from each layer of steel gabion 2 from bottom to top. 1.0m or 0.5m stacked, the steel gabions 2 between each layer are arranged in dislocation, and the adjacent steel gabions 2 are welded with short bars to form a whole stepped dam body, at the bottom of the stepped dam body Set the drainage culvert 3. see image 3 , the reinforced gabion 2 is composed of a rectangular reinforced cage 2.1 and a reinforced mesh cover 2.2 arranged on the top of the rectangular reinforced cage 2.1, the size of the reinforced gabion 2 can be made according to the on-site construction, generally the size of the reinforced gabion 2 is 2m × 1.5m × 1m or 2m × 2m × 1m, the steel gabion 2 can be made by welding steel bars with a diameter of φ16, φ18 or φ20, where the spacing between the steel bars is 10-20...
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The invention discloses a flexible debris retaining dam structure and a construction method thereof. The flexible debris retaining dam structure and the construction method thereof comprises a debris retaining dam which is constructed on a covering layer base, the debris retaining dam is formed by stacking reinforcement gabions from bottom to top in a gradually set-back mode, adjacent reinforcement gabions are connected with each other in a welded mode to form an integral step-type dam body, and a drain culvert pipe is arranged at the bottom of the step-type dam body. The integral step-type dam body is formed by adopting multi-layer reinforcement gabion stacked combination, and the body type of the step-type dam body is basically the same as that of conventional gravity dam types such as concrete debris retaining dam and grouted rubble debris retaining dam; the structure is simple, the certain character of 'flexibility' of the structure is achieved, a general degree of deformation feedback to the soft foundation of the covering layer is effective adapted, the dam body can not be destroyed, so that fundamental demands to build a dam is lowered, the dam can be constructed on the soft foundation of the covering layer, the construction is simple, and the construction cost is low.
Description
technical field [0001] The invention relates to a flexible slag retaining dam structure and a construction method thereof, belonging to the technical fields of water conservancy, hydropower and civil engineering construction. Background technique [0002] A large amount of earth and rock excavation waste generated during the construction of hydropower projects needs to be transported to the selected waste land and piled up according to certain requirements. The waste retaining dam is one of the important structures in the waste land, which plays a role in retaining waste land. At the same time, the slag check dam must also have the functions of being able to discharge the accumulated water in the slag body behind the dam and adapt to bad foundations. At present, the slag dams in the waste slag yards of hydropower projects are mostly made of hard materials such as concrete and masonry, which have stable structures, high strength, and are not easily damaged. However, hard mat...
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Login to View More IPC IPC(8): E02B7/06
CPCE02B7/06
Inventor 俞灵光李波雷有栋张毅驰
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD