Concrete face board rock-fill dam bed course area moving boundary wall filling construction technique

A technology of concrete face and construction technology, applied in dams, buildings, barrages and other directions, can solve the problem of many cracks in concrete face, and achieve the effect of improving the filling speed of the dam body, high application value, and reducing the amount of processing works.

Inactive Publication Date: 2007-08-22
GUODIAN XINJIANG KAIDU RIVER BASIN HYDROELECTRICITY DEV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, when this technology is used for construction, there are many cracks in the concrete panel. Some domestic

Method used

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  • Concrete face board rock-fill dam bed course area moving boundary wall filling construction technique
  • Concrete face board rock-fill dam bed course area moving boundary wall filling construction technique

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[0014] 1. Mobile side wall design

[0015] The mobile side wall is designed as a reinforced concrete precast wall with a rectangular section. The overall strength of the side wall should meet the requirements of installation and stability under vibration rolling conditions. The height and width of the side wall are related to the layered rolling thickness of the cushion material, the rolling parameters and the upstream slope of the cushion area. In actual construction, the height and width of the wall are designed according to specific construction parameters. The length of the side wall is determined according to the rolling experiment. The wall is stable during rolling, and the horizontal displacement is not more than 2cm to ensure the compaction of the cushion material. Two lifting lugs are arranged symmetrically on the top surface of the side wall to facilitate lifting and moving. For example: the cushion paving thickness is 43cm, the compaction thickness is 37cm, the upstream...

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Abstract

The present invention relates to a concrete deck rock-fill dam bedding zone moving side wall reclamation construction technique in water utilization and water-power engineering. It is characterized by that said invention adopts reinforced concrete moving side wall to make slope protection in layers, rolling by layers, repeatedly using moving side wall, mechanical scaling, manual precise scaling, finishing slope and protecting slope by adopting mortar-rolling process.

Description

Technical field [0001] The invention belongs to a construction technique for filling the cushion area of ​​a concrete face rockfill dam in a water conservancy and hydropower project. Background technique [0002] In a concrete face rockfill dam, the cushion material area is located on the downstream side of the slab, and the upstream slope surface when the dam body is filled is the foundation of the anti-seepage concrete slab of the dam body. This area requires uniformity, stability, low compressibility, high The characteristics of shear strength, whether it is the cushion material or the filling index, have higher requirements, especially the slope compaction index is more stringent; therefore, special attention is paid to the filling of this part in the dam body filling . [0003] In the traditional construction method, the filling of the cushion area is a method of laying materials in layers and compacting. In the slope treatment, an overfill of 30-50cm is adopted. Durin...

Claims

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Application Information

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IPC IPC(8): E02D27/40E02D17/20E02B7/06
Inventor 张成龙韦春侠王援生陈洪武何全生王占臣杨伟
Owner GUODIAN XINJIANG KAIDU RIVER BASIN HYDROELECTRICITY DEV
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