基于深部位移曲线形态的边坡变形特征分析
|
摘要
边坡动态变形监测曲线形态针对不同类型的变形特征会出现不同的变形特征曲线。根据各种类型边坡的实测特征曲线,其呈现的多种形态对应多种潜在的变形破坏趋势。研究通过弹塑性有限元结合有限差分分析程序FLAC,详细分析了顺层滑动、切层滑动、顺层溃屈、倾倒变形、崩塌变形及破坏特征。
For different types of deformation characteristics,the shape of slope dynamic deformation monitoring curves will appear different deformation characteristic curves. In this paper,according to the measured characteristic curves of different types of slopes,which present various shapes and correspond to different potential deformations and failure trends,the characteristics of bedding sliding,shear sliding,bedding collapse,toppling deformation,collapse deformation and failure characteristics are analyzed in detail by elastic-plastic finite element method program PHASE2 and finite difference analysis program FLAC.
For different types of deformation characteristics,the shape of slope dynamic deformation monitoring curves will appear different deformation characteristic curves. In this paper,according to the measured characteristic curves of different types of slopes,which present various shapes and correspond to different potential deformations and failure trends,the characteristics of bedding sliding,shear sliding,bedding collapse,toppling deformation,collapse deformation and failure characteristics are analyzed in detail by elastic-plastic finite element method program PHASE2 and finite difference analysis program FLAC.
引文
[1]李荷生.一种探测滑动面(带)的可靠方法[J].路基工程,1994(05):41-45.
[2]马水山,张保军,汤平.钻孔测斜仪在滑坡体深部变形监测中的应用[J].中国地质灾害与防治学报,1996,7(S1):109-114.
[3]黄润秋.中国西部岩石高边坡应力场特征及其卸荷破裂机理[J].工程地质学报,2004(12):7-13.
[4]中铁西北科学研究院有限公司.泉三高速公路三明市境段重点边坡动态变形监测报告[R]. 2007.
[5]中铁西北科学研究院有限公司.永武高速公路三明市境段边坡动态变形监测监测报告[R]. 2006.
[2]马水山,张保军,汤平.钻孔测斜仪在滑坡体深部变形监测中的应用[J].中国地质灾害与防治学报,1996,7(S1):109-114.
[3]黄润秋.中国西部岩石高边坡应力场特征及其卸荷破裂机理[J].工程地质学报,2004(12):7-13.
[4]中铁西北科学研究院有限公司.泉三高速公路三明市境段重点边坡动态变形监测报告[R]. 2007.
[5]中铁西北科学研究院有限公司.永武高速公路三明市境段边坡动态变形监测监测报告[R]. 2006.