| 强地震荷载作用下含断层岩质边坡稳定性分析 |
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| 引用本文： | 张均锋,李正国.强地震荷载作用下含断层岩质边坡稳定性分析[J].力学与实践,2010,32(1):24-28. |
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| 作者姓名： | 张均锋 李正国 |
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| 作者单位： | 中国科学院 力学研究所，北京 100080 |
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| 基金项目： | 国家自然科学基金(10672167);;国家重点基础研究发展规划(973)(2002CB412706)资助项目 |
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| 摘 要： | 基于岩石材料的弹塑性损伤理论,引入两个独立的损伤变量分别控制岩石的拉压行为,通过对地震荷载作用下边坡场地响应的有限无数值模拟,总结含裂隙的岩质边坡发生局部损伤软化、破坏的区域的扩展、演化过程和规律.结合对某大型水电坝坝址左岸的岩质边坡在强地震动载荷作用下(百年一遇、超越概率2%)发生破坏的数值模拟,揭示这类边坡滑坡的机理,并根据模拟的结果,对整治边坡破坏提出参考依据.
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| 关 键 词： | 强地震荷载 岩质边坡 裂隙 损伤演化 |
| 收稿时间： | 2008-10-13 |
STABILITY ANALYSIS OF FRACTURED ROCK SLOPE UNDER STRONG SEISMIC LOADING |
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| ZHANG Junfeng
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LI Zhengguo.STABILITY ANALYSIS OF FRACTURED ROCK SLOPE UNDER STRONG SEISMIC LOADING[J].Mechanics and Engineering,2010,32(1):24-28. |
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| Authors: | ZHANG Junfeng LI Zhengguo |
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| Institution: | 2;Institute of Mechanics/a>;The Chinese Academy of Sciences/a>;Beijing 100080/a>;China |
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| Abstract: | Based on elasto-plastic damage theory of rock materials,the failure and fracture processes of rock slopes are numerically simulated with the site response of the rock slope under strong seismic loading,including the local damage evolution and the development of failure area.Two independent damage variables are introduced into the constitutive model to control the tension and compression behaviors of the rock materials. Although the characteristics of initial micro-cracks inherent in the rock materials are n... |
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| Keywords: | strong seismic loading rock slope crack damage evolution |
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