摘要
依托某高速公路二次开挖项目,在分析地勘资料的基础上,基于有限元MIDAS/GTS分别建立了既有边坡、二次开挖边坡及支护措施的有限元模型,首先对既有边坡的稳定性进行了分析,然后对应二次开挖施工工序分别分析了每个工序的安全系数、塑性区、应力及位移分布和变化规律,总结出了此类型高边坡滑裂面位置及破坏机理,研究成果可为同类型项目提供参考。
Based on the analysis of the geological survey data,the finite element model of the existing slope,secondary excavation slope and support measures are established based on the finite element MIDAS/GTS.The stability of the existing slope is analyzed,and then the safety factor,plastic zone,stress and displacement distribution and variation law of each process are analyzed respectively for the secondary excavation construction process.The high slope slip of this type is summarized.The location of the fracture surface and the failure mechanism,the research results of this paper can provide reference for the same type of project.
作者
邓爽
梁正勇
DENG Shuang;LIANG Zhengyong(School of Architectural Engineering,Kaili University,Kaili,Guizhou 556011,China;Hefei University of Technology,Hefei,Anhui 230009,China)
出处
《公路工程》
北大核心
2019年第6期266-270,共5页
Highway Engineering
基金
安徽省建设行业科技计划项目(2014YF-12)
关键词
高速公路
二次开挖
路堑高边坡
滑裂面
expressway
secondary excavation
high slope of road cutting
slip surface
