偏远山区混合堆积体边坡失稳加固处置研究  

Study on Reinforcement and Disposal of Instable Mixed Talus Slope in Remote Mountainous Areas

作　　者：王有昌[1] 余涛 舒伟富 钟志群 涂孝波 WANG Youchang;YU Tao;SHU Weifu;ZHONG Zhiqun;TU Xiaobo(Kunming Survey&Design Institute of State Forestry Administration,Kunming 650031,China;Kunming Ambo Construction Engineering Co.,Ltd.,Kunming 650501,China;Sichuan ZHIDE Geotechnical Engineering Co.,Ltd.,Chengdu 610094,China;Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]国家林业局昆明勘察设计院,昆明650031 [2]昆明安博建筑工程有限公司,昆明650501 [3]四川志德岩土工程有限责任公司,成都610094 [4]昆明理工大学,昆明650500

出　　处：《路基工程》2023年第4期198-205,共8页Subgrade Engineering

摘　　要：依托澜沧江沿江公路边坡工程实例,分析边坡混合堆积体特点及失稳变形特征,运用强度折减法原理和Midas GTS/NX有限元软件对边坡变形失稳过程、逐级开挖防护过程进行对比模拟分析;研究混合堆积体边坡失稳变形演化机制,模拟锚杆框架、锚索地梁、调整纵坡路基填筑等加固处治效果。By taking the highway slope engineering along Lancang River as an example,the characteristics of mixed talus slope and its failure deformation behaviour were analyzed,and by use of the principle of strength reduction method and Midas GTS/NX finite element software,the courses of the slope failure deformation and the protection of excavation in steps were analyzed by contrast simulation.Based on this,the failure deformation evolution mechanism of the mixed talus slope was studied,and the reinforcement effects of anchor frame,foundation beam with anchor cable and adjustment of longitudinal slope embankment filling were simulated.

关 键 词：混合堆积体边坡 失稳机制 强度折减法原理 数值模拟 边坡加固 

分 类 号：U416.14[交通运输工程—道路与铁道工程]