| 邹德高,徐斌,孔宪京.钉结护面板对高土石坝坝坡地震稳定性影响研究[J].,2009,(5):675-679 |
| 钉结护面板对高土石坝坝坡地震稳定性影响研究 |
| Study of effects of nail-tied panel on stability of high earth-rockfill dam slope |
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| DOI：10.7511/dllgxb200905008 |
| 中文关键词: 钉结护面板 高土石坝 坝坡稳定 动力有限元时程法 滑移 |
| 英文关键词: nail-tied panel high earth-rockfill dam dam slope stability dynamic FEM (finite element method) time history method slippage |
| 基金项目:国家自然科学基金资助项目重大项目90815024；国家自然科学基金雅砻江水电开发联合研究基金资助项目(50679093)；〖JP2〗国家自然科学基金青年基金资助项目(50808032)；“十一五”国家科技支撑计划资助项目(2009BAK56B02).〖JP〗 |
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| 中文摘要: |
| 建立了考虑钉结护面板作用的土石坝坝坡地震稳定和滑移计算方法．在此基础上，对比分析了无加固措施和采用钉结护面板两种工况下295 m级两河口心墙堆石坝的坝坡稳定性．结果表明 采用钉结护面板后，坝坡最小安全系数对应的滑弧加深，安全系数明显提高，滑移量减小，有效地增加了坝顶的整体稳定性；随输入地震动峰值增加，钉结护面板对坝坡稳定安全系数的贡献逐渐增大． |
| 英文摘要: |
| Considering nail-tied panel effect, a method of calculating rockfill dam slope seismic stability and slippage was established. Based on the method, the slope stability of the Lianghekou core dam with 295 m in height was analyzed, and the effects of nail-tied panel on the stability of high earth-rockfill dam slope were studied. The results show that with nail-tied panel, the slip surface corresponding to the minimum safety factor becomes deeper, the dam slope safety factors are improved obviously, and the dam stability is enhanced effectively. With the increase of the earthquake peak acceleration, the dam slope stability can benefit from nail-tied panel significantly. |
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