京通线路基冻胀及春融翻浆冒泥整治  

Treatment of Frost-heaving and Mud Pumping Caused by Spring Thaw for Beijing-Tongliao Railway Subgrade

作　　者：郭胜[1] 

机构地区：[1]北京铁路局工务处,北京100844

出　　处：《铁道建筑》2016年第11期101-103,共3页Railway Engineering

摘　　要：针对京通线(北京—通辽)路基冻胀及春融翻浆冒泥病害,开展了室内土样颗粒分析及原状土含水率、冻胀、渗透性等试验,并通过地质雷达法和高密度电法进行了物探分析,查明了路基冻结层地下水分布情况,阐明了病害产生的原因。提出了铺设PVC(聚氯乙烯)毛细排水板隔水保温和增设密井暗管降低地下水位的整治措施,并在现场多处试用。连续3年观测结果表明整治效果良好。In view of the subgrade diseases of frost-heaving and mud pumping caused by spring thaw,the laboratory experiments on soil sample particle analysis and natural soil water content ratio,frost-heaving and permeability and so on were conducted.The geophysical analysis methods such as geological radar method and high-density resistivity method were applied to detect the distribution of groundwater in subgrade frozen layer.The causes of subgrade diseases were analyzed.The diseases treatments such as laying PVC（Polyvinyl Chloride） capillary drainage plates to separate water and keep warm,and setting dense well closed drainage system to lower the ground water lever were provided.The treatments were on trial and had good effect which was proved by observation results in three years.

关 键 词：路基 冻胀 翻浆冒泥 病害整治 

分 类 号：U213.14[交通运输工程—道路与铁道工程]