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| 奉节长江大桥北岸边坡在地震荷载作用下的稳定性分析 | |
| 引用本文： | 陈蜀俊,党晓英,曾心传,罗登贵.奉节长江大桥北岸边坡在地震荷载作用下的稳定性分析[J].岩石力学与工程学报,2004,23(4):657-662. |
| 作者姓名： | 陈蜀俊 党晓英 曾心传 罗登贵 |
| 作者单位： | 1. 中国地质大学地球科学学院,武汉,430074;武汉地震工程研究院,武汉,430071 2. 华中电管局,武汉,430077 3. 武汉地震工程研究院,武汉,430071 |
| 摘 要： | 静力计算认为稳定的边坡，在地震发生时，由于潜滑体被施加动力荷载，加之孔隙水压力上升，岩土体的抗剪强度降低，导致拟滑动面抗滑力下降，将可能是不稳定的。因此，重要的边坡问题，仅进行静力计算是不够的。以奉节长江大桥北岸边坡为例，在工程详勘及场地地震危险性分析的基础上，采用传递系数法对边坡在地震荷载作用下的稳定性进行了计算分析，对比了现状边坡工况与175m水位线边坡工况下静、动力稳定性的差异。 |
| 关 键 词： | 边坡 地震荷载 稳定性 岩土力学 奉节长江大桥 孔隙水压力 |
| 文章编号： | 1000-6915(2004)04-0657-06 |
| 收稿时间： | 2003-7-2 |
| 修稿时间： | 2003-8-21 |
SEISMIC STABILITY ANALYSIS OF SLOPE AT NORTH BANK OF FENGJIE CHANGJIANG RIVER BRIDGE |
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| Chen Shujun,Dang Xiaoying,Zen Xinchuan,Luo Denggui.SEISMIC STABILITY ANALYSIS OF SLOPE AT NORTH BANK OF FENGJIE CHANGJIANG RIVER BRIDGE[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(4):657-662. | |
| Authors: | Chen Shujun Dang Xiaoying Zen Xinchuan Luo Denggui |
| Affiliation: | Chen Shujun1,3,Dang Xiaoying2,Zen Xinchuan3,Luo Denggui3 |
| Abstract: | The statically stable slope would not be stable when earthquake happens. When earthquake happens,the potential sliding body suffers some dynamic load,in addition to the pore water pressure arising and the anti-sliding force on potential sliding surface decreases due to the anti-shear strength of rock and soil body decreasing. Therefore,it is not sufficient only to make static calculation for important slope. In the present paper,as an instance,the seismic stability of the slope at the north bank of Fengjie Changjiang river bridge is studied by transfer-coefficient method,based on the detail exploration and the seismic hazard analysis for the engineering site. |
| Keywords: | rock and soil mechanics slope seismic load stable analysis |
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