基于FLAC~(3D)的边坡开挖加固效果分析

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英文篇名：Analysis of Slope Excavation and Reinforcement Based on FLAC~(3D) 作者：张彧琦 英文作者：ZHANG Yu-qi;Shanxi Academy of Communications Science; 关键词：路堑高边坡 ; 边坡开挖 ; 预支护 ; 数值模拟 英文关键词：high cutting slope;;slope excavation;;pre-support;;numerical simulation 中文刊名：LZGD 英文刊名：Journal of Lanzhou Institute of Technology 机构：山西省交通科学研究院; 出版日期：2018-10-15 出版单位：兰州工业学院学报 年：2018 期：v.25;No.107 语种：中文; 页：LZGD201805005 页数：5 CN：05 ISSN：62-1209/Z 分类号：20-23+28

摘要

基于FLAC~(3D)讨论了预加固措施对开挖路堑高边坡工程加固效果的变化,主要对边坡开挖坡体应力、坡体位移、锚索轴力以及抗滑桩顶位移进行分析.结果表明:在坡顶和坡内位置,预加固的开挖边坡位移呈现出台阶状变化,并且在靠近坡面位置位移会相对减少;开挖以后,坡脚抗滑桩顶部的位置出现压应力集中;经过现场监测与数值模拟监测结果对比,两者曲线吻合较好,说明该数值模拟结果可靠.
        Based on FLAC~(3D),in this paper,a discussion is conducted,concerning the research on the effect of pre-reinforcement on the reinforcement effect of excavation cutting slope high slope engineering. Mainly the slope stress,slope displacement,anchor cable axial force and the displacement of anti-slide pile top are analyzed. The conclusions are as follow: The displacement of the pre-reinforced excavation slope shows a step-like change at the top of the slope and in the slope,and the displacement will be relatively reduced near the slope. After the excavation,the position of the top of the anti-slide pile at the foot of the slope appears. Compression stress concentration. After field monitoring and numerical simulation monitoring results,a good agreement between the two curves can be got,indicating that the numerical simulation method is more reliable and can be used in the project.

引文

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