| 基于有限元法对拱坝坝肩动力稳定的分析 |
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| 引用本文： | 李梦,常晓林. 基于有限元法对拱坝坝肩动力稳定的分析[J]. 湖北水力发电, 2008, 0(2): 7-9 |
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| 作者姓名： | 李梦 常晓林 |
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| 作者单位： | 李梦（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）;常晓林（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： | 拱坝在地震作用下稳定性问题,尤其是拱坝坝肩的抗震稳定性问题关系重大。以大丫口水电站拱坝为例,计算坝肩在地震作用下的稳定安全系数并进行评价分析。这里首先采用有限元时程分析法计算动力作用下的应力值,与静力作用下应力值累加后,与以往不同的是,这里并没有直接利用有限元得出的内力在滑移面进行应力积分,而是通过应力积分法计算坝体对坝肩在建基面处的推力,应用刚体极限平衡法计算抗滑稳定系数并进行分析评价。
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| 关 键 词： | 坝肩稳定 时程分析法 应力积分法 刚体极限平衡法 |
| 文章编号： | 1671-3354(2008)02-0007-03 |
| 修稿时间： | 2008-03-12 |
FEM-based dynamic stability analysis of arch dam abutment |
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| LI Meng,CHANG Xiaolin. FEM-based dynamic stability analysis of arch dam abutment[J]. Hubei Water Power, 2008, 0(2): 7-9 |
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| Authors: | LI Meng CHANG Xiaolin |
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| Affiliation: | LI Meng,CHANG Xiaolin(State Key Laboratory of Water Resources , Hydropower Engineering Science,Wuhan University,Wuhan 430072,china) |
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| Abstract: | The problem of the arch dam's seismic stability,especially the abutment's stabihly,is very important.Taking the concrete arch dam of Dayakou Hydropower Station for example,the safety actor for sliding of abutment under earthquake is calculated;and the appraisal analysis.Is made.First,the maximum stress value under dynamic load is calculated with time interval analysis method;and the maximum stress value under both dynamic and static load.Is obtoined,Then what is different from the past,is that here there is... |
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| Keywords: | stability of arch dam abutment time interval analysis method stress integral method rigid limit equilibrium method |
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