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。
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 influcenee 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.
出处
《工业建筑》
CSCD
北大核心
2008年第10期76-79,共4页
Industrial Construction
基金
铁道部科研资金资助项目(2002G003-01-02)
