高速公路边坡滑动失稳机理分析与加固研究  

SLOPING MARGIN STABILITY ANALYSIS AND PREVENTION MEASURES OF HIGHWAY

作　　者：赵占彪[1] 申向东[1] 

机构地区：[1]内蒙古农业大学水利与建筑学院,呼和浩特010018

出　　处：《内蒙古农业大学学报（自然科学版）》2007年第4期159-162,共4页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

摘　　要：分析了内蒙古呼和浩特——老爷庙高速公路K453＋200～K453＋800段的滑动失稳破坏,该段以路堑形式通过,在雨季后期,岩土体突然发生滑动失稳变形,通过对边坡岩土体物理、力学性能的试验研究,得到了产生边坡失稳的主要原因是：边坡下部存在泥岩夹层,该泥岩遇水膨胀,随着含水量的增加残余强度明显衰减为20.8%,当坡体较大范围内土层强度衰减至残余强度时坡体必然发生滑动失稳而破坏。采用了抗滑桩和预应力钢筋砼框架结构等加固措施,收到了较好的效果。The sloping margin stability of Laoye Temple Highway, Huhhot in Inner Mongolia Autonomous Region was analyzed in this paper. Through the soil body study of the capability of the physics and mechanics the main reasons leading to sloping margin stability in this area were found ： The residual strength of the eluvium of moya was decayed because of increasing water content 20.8%. Some improvements were provided according to the situation and a better result was received.

关 键 词：高速公路 边坡 失稳 分析 加固 

分 类 号：U418.5[交通运输工程—道路与铁道工程]