[1]孙萍,殷跃平,陈立伟,等.汶川地震区东河口滑坡破坏机制FLAC模拟分析[J].水文地质工程地质,2011,38(5):87-91.
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汶川地震区东河口滑坡破坏机制FLAC模拟分析()
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《水文地质工程地质》[ISSN:1000-3665/CN:11-2202/P]

卷:
38卷
期数:
2011年5期
页码:
87-91
栏目:
OA栏目
出版日期:
2011-09-15

文章信息/Info

作者:
孙萍;殷跃平;陈立伟;
国土资源部新构造运动与地质灾害重点实验室;中国地质科学院地质力学研究所;中国地质调查局;中国核电工程有限公司;
关键词:
汶川地震滑坡竖向峰值加速度破坏机制FLAC
文献标志码:
A
摘要:
以汶川地震触发的东河口滑坡为典型案例,根据野外调查结果建立震前地质模型,将实测的汶川地震波作为动力输入,采用FLAC有限差分法对该滑坡分别进行了静力稳定性分析及动力稳定性分析。计算结果表明:竖向峰值加速度导致了边坡的稳定性系数大幅降低,对边坡的破坏起着不可忽视的作用;另外,竖向峰值加速度引起了边坡后缘大面积的拉张破坏,这正是汶川地震引起西南山区产生大量崩滑甚至岩土体"抛掷"现象的一个重要因素。

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备注/Memo

备注/Memo:
基金:国家自然科学基金项目(40802067);;973计划资助项目(2008CB425803);;中国地质调查局项目(1212010914025)
更新日期/Last Update: 2011-09-15