| 顺层岩质边坡开挖模型试验及稳定性影响因素分析 |
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| 引用本文： | 冯君,周德培,李安洪.顺层岩质边坡开挖模型试验及稳定性影响因素分析[J].工程地质学报(英文版),2005,13(3):294-299. |
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| 作者姓名： | 冯君 周德培 李安洪 |
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| 作者单位： | 西南交通大学岩土工程系,成都,610031;铁道第二勘察设计院,成都,610031 |
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| 摘 要： | 用地质力学模型试验方法,对顺层岩质边坡进行开挖破坏试验。同时在有限元分析的基础上,采用多层结构模型对顺层岩质路堑边坡稳定性的影响因素进行了分析。指出当边坡走向与岩层走向夹角超过30后,边坡发生顺层滑动破坏的可能性很小,基本上可不视为顺层边坡。同时也阐明了岩层倾角以及结构面抗剪强度对顺层岩质边坡稳定性的影响。文中结论可为顺层岩质边坡的科研、设计和施工提供参考。
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| 关 键 词： | 顺层岩质边坡 模型试验 因素分析 有限元 |
| 收稿时间： | 2004-08-05 |
| 修稿时间： | 2005-03-10 |
TEST AND NUMERICAL MODELING OF THE STABILITY OF ROCK BEDDED SLOPE |
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| FENG Jun,ZHOU Depei,LI Anhong.TEST AND NUMERICAL MODELING OF THE STABILITY OF ROCK BEDDED SLOPE[J].Journal of Engineering Geology,2005,13(3):294-299. |
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| Authors: | FENG Jun ZHOU Depei LI Anhong |
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| Affiliation: | 1.Southwest Jiaotong University, Chengdu 610031;2.The Railway Second Survey Design Institute, Chengdu 610031 |
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| Abstract: | This paper presents results of a physical model of geo-model material under multi-stage excavation of the slope. The failure behavior of cutting slopes in layered rock mass is then analyzed. Based on finite element analysis, some key factors for stability of rock bedded slope are determined using the laminated model. The results of the numerical simulation show that the possibility of bedding slide of bedding stratified rock slope becomes very low when the intersecting angle between the strike direction of slope and that of strata exceeds 30o. Therefore, this kind of slope may not be defined as rock bedded slope. The relationship between the stability of rock bedded slope and the dip angle of strata or the shear strength of joint is also discussed in this paper. |
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| Keywords: | Rock bedded slope Modeling test Factor analysis Finite element method |
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