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INFLUENCE OF ANGLE BETWEEN STRIKE OF SLOPE AND STRATA ON SLOPE STABILITY
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摘要: 以有限元分析为手段,分别对单面临空和双面临空的顺层边坡的开挖变形规律进行详细研究,着重对边坡走向与岩层走向夹角的大小对顺层边坡开挖稳定性的影响进行分析,在此基础上给出以走向夹角为指标的顺层与非顺层边坡的判别依据。最后用地质力学模型试验对单面临空条件下的有限元分析结果进行验证。结果表明:对于单面临空和双面临空的顺层边坡,当边坡走向与岩层走向夹角分别大于30和50以后,均基本不用考虑顺层现象对边坡稳定性的影响。
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关键词:
- 顺层边坡 /
- 岩层走向与边坡走向夹角 /
- 有限元 /
- 模型试验 /
- 稳定性
Abstract: Based on FEM analysis,the deformation of bedding rock slope with single free face or double free face is studied.More attention is paid to the influcence of angle between strike of slope and strata on slope stability and the index regarding the strike angle used to distinguish between bedding rock slope and non-bedding rock slope is developed.Furthermore,the FEM results related to the case of single free face are verified by the model test.All the results show that referring to bedding rock slope with single free face and with double free face,when the angle between strike of slope and strata is more than 30 and 50 respectively,the slope may not be regarded as bedding rock slope any more.-
Key words:
- bedding rock slope /
- angle between strike of slope and strata /
- FEM /
- model test /
- stability
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冯君,周德培,李安洪.顺层岩质边坡开挖松弛区试验研究.岩石力学与工程学报,2005,24(5):840-845 [2] 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.工程地质学报,2005:13(3):294-299 [3] 白云峰,周德培,冯君.顺向坡岩层走向与边坡走向夹角的上限值.西南交通大学学报,2005,40(3):326-329 [4] 刘洋.水柏铁路银山顺层滑坡整治工程.路基工程,2001(5):66-68 [5] 陈志坚.层状岩质边坡工程安全监控建模理论及关键技术研究:[博士学位论文].南京:河海大学,2001:29-32 -
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