| 花山拱坝右坝肩溶洞对坝体及坝肩的影响分析 |
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| 引用本文： | 周彩霞,何蕴龙,何卫平.花山拱坝右坝肩溶洞对坝体及坝肩的影响分析[J].武汉大学学报(工学版),2011,44(3):285-288,334. |
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| 作者姓名： | 周彩霞 何蕴龙 何卫平 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,湖北武汉,430072 |
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| 摘 要： | 为评价花山拱坝右坝肩溶洞对坝体及坝肩的影响,采用三维有限元方法,对不同工况不同方案下坝体和坝肩岩体应力变形进行计算分析,并利用超载法分析了不同方案下的坝肩稳定状况.结果表明:溶洞的存在对坝体的应力变形及坝肩的整体稳定性影响较小,对坝肩岩体应力变形的影响也仅限于溶洞附近区域;溶洞回填处理后,其附近的变形得到有效控制.综合来看,溶洞的存在对整个工程影响较小,经过回填处理后,整个工程的安全性是有保障的.
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| 关 键 词： | 溶洞 拱坝 应力变形 坝肩稳定 有限元 |
Analysis of impact on dam body and abutment caused by karst cave at right abutment of Huashan arch dam |
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| ZHOU Caixia,HE Yunlong,HE Weiping.Analysis of impact on dam body and abutment caused by karst cave at right abutment of Huashan arch dam[J].Engineering Journal of Wuhan University,2011,44(3):285-288,334. |
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| Authors: | ZHOU Caixia HE Yunlong HE Weiping |
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| Affiliation: | ZHOU Caixia,HE Yunlong,HE Weiping(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | To evaluate the impact on dam body and abutment caused by karst cave at the right abutment of Huashan arch dam,the three-dimensional finite element method is used in stress and deformation analysis of the dam body and abutment.The calculations are made for different conditions and different schemes.In addition,the overload method is used to analyze the abutment stability under different schemes.The results show that the karst cave has little influence on the stress and deformation of dam body and its abutme... |
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| Keywords: | karst cave arch dam stress and deformation abutment stability finite elements |
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