Concrete face board rock-fill dam bed course area moving boundary wall filling construction technique
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- GUODIAN XINJIANG KAIDU RIVER BASIN HYDROELECTRICITY DEV
- Publication Date
- 2007-08-22
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
Technical field
[0001] The invention belongs to a construction technique for filling the cushion area of ββa 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...