| 钉结护面板对高土石坝坝坡地震稳定性影响研究 |
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| 引用本文： | 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].大连理工大学学报,2009,49(5):675-679. |
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| 作者姓名： | 邹德高 徐斌 孔宪京 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024;大连理工大学,土木水利学院,辽宁大连,116024 |
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| 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); 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) |
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| 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.
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| 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 |
Study of effects of nail-tied panel on stability of high earth-rockfill dam slope |
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| ZOU Degao,XU Bin,KONG Xianjing.Study of effects of nail-tied panel on stability of high earth-rockfill dam slope[J].Journal of Dalian University of Technology,2009,49(5):675-679. |
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| Authors: | ZOU Degao XU Bin KONG Xianjing |
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| Institution: | ZOU De-gao1,2,XU Bin1,KONG Xian-jing1,21.State Key Laboratory of Coastal , Offshore Engineering,Dalian University of Technology,Dalian 116024,China,2.School of Civil , Hydraulic Engineering |
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| Abstract: | 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 stabil... |
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| Keywords: | nail-tied panel high earth-rockfill dam dam slope stability dynamic FEM(finite element method) time history method slippage |
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