| 王成山,韩国城,吕和祥.白石碾压混凝土重力坝预留缝的研究与应用[J].水利学报,2003,34(9):0107-0111 |
| 白石碾压混凝土重力坝预留缝的研究与应用 |
| Application of preset cracks in RCC dams |
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| DOI： |
| 中文关键词: 碾压混凝土 大坝 预留缝 |
| 英文关键词: RCC dam preset crack opening FEM |
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| 中文摘要: |
| 为防止大坝产生裂缝，对辽宁省白石水库碾压混凝土重力坝采用预留缝的防裂措施。挡水坝段越冬层面上、下游面附近两处设置水平预留缝，溢流坝反弧段表面设置铅直预留缝。用限元法对预留缝的扩展和坝体沿预留缝的稳定性进行了仿真分析。原型观测结果表明，预留缝开度符合规律，此措施有效。 |
| 英文摘要: |
| In order to avoid the occurrence of dam crack, preset cracks were applied to RCC dam in Baishi Project, Liaoning Provincce, China. Horizontal preset cracks were set at two places at the vicinity of upstream surface and downstream surface of the non-overflow dam section, and vertical preset cracks were set on the bucket surface of overflow dam section.The opening of the preset cracks and stability of the dam along the crack layers were calculated by means of FEM. The prototype observation showed that the openings of the preset cracks were compiled with the regularity. The effectiveness of the preset cracks was verified. |
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