| 单江混凝土拱坝坝肩向斜结构抗滑稳定计算分析 |
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| 引用本文： | 佘成学,曾志华,周龙龙. 单江混凝土拱坝坝肩向斜结构抗滑稳定计算分析[J]. 岩石力学与工程学报, 2007, 26(10): 1976-1981 |
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| 作者姓名： | 佘成学 曾志华 周龙龙 |
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| 作者单位： | 武汉大学,水利水电学院,湖北,武汉,430072;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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| 基金项目： | 国家自然科学基金委员会、雅垄江水电开发联合基金 |
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| 摘 要： | 单江拱坝右坝肩存在一个向斜岩体结构,在拱坝推力作用下,有可能滑动破坏.利用有限元计算坝基、坝肩的渗流场以及拱坝传递到坝肩的推力,在此基础上利用三维极限抗滑稳定计算方法,计算在各种工况情况下,向斜结构的抗滑稳定安全系数;并利用锚索对滑动体进行加固,计算满足规范要求的抗滑稳定安全系数所需要的锚索数量,以及计算分析锚索施加角度对抗滑稳定的影响.所得结果为该向斜岩体结构的抗滑设计提供了理论依据.
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| 关 键 词： | 水工结构工程 拱坝 坝肩 抗滑稳定 |
| 文章编号： | 1000-6915(2007)10-1976-06 |
| 收稿时间： | 2007-05-25 |
| 修稿时间： | 2007-05-25 |
ANAYSIS OF ANTI-SLIDING STABILITY OF SYNCLINE STRUCTURE ON RIGHT ABUTMENT OF DANJIANG CONCRETE ARCH DAM |
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| SHE Chengxue,ZENG Zhihua,ZHOU Longlong. ANAYSIS OF ANTI-SLIDING STABILITY OF SYNCLINE STRUCTURE ON RIGHT ABUTMENT OF DANJIANG CONCRETE ARCH DAM[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(10): 1976-1981 |
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| Authors: | SHE Chengxue ZENG Zhihua ZHOU Longlong |
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| Abstract: | The unstable rock body with syncline structure on the right abutment of Danjiang arch dam are analyzed under the thrust from arch dam.Firstly the seepage through the foundation and abutment as well as the thrust from arch dam are calculated by finite element method.Then the three-dimensional limit equilibrium method is used to calculate the anti-sliding safety factors under different working conditions.Finally,the number of reinforcing cables needed to meet the specification requirement of anti-sliding safety factor is evaluated;and the influence of dip direction of cables on safety factor is analyzed too.The results provide theoretical basis for the anti-sliding design of the syncline rock structure. |
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| Keywords: | hydraulic structure engineering arch dam abutment anti-sliding stability |
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