钢花管注盐法在季节性冻土区整治路基冻害中的应用研究  

Research on Frost Damage Remediation Technology with Salt Injection Method by Steel Flower Tube in Seasonal Frozen Soil Subgrade

作　　者：王跃武 

机构地区：[1]青藏铁路公司西宁工务段,青海西宁810006

出　　处：《兰州工业学院学报》2017年第6期24-27,共4页Journal of Lanzhou Institute of Technology

摘　　要：以季节性冻土区青藏铁路环青海湖段路基冻害为背景,根据路基病害处理中成熟应用的钢花管注浆法和注盐法,提出钢花管注盐整治新技术,分析了其整治原理与工艺控制参数,并通过现场注盐试验,对整治路基冻害的有效性进行分析.结果表明,注盐段路基的冻胀量明显降低.钢花管注盐法可用于季节性冻土区路基冻害的整治治理.Based on frost damage in the Qinghai Lake section of Qinghai-Tibet railway in seasonal frozen soil area,a new technique for salt injection remediation with steel flower tube is put forward innovatively,which is on the basis of mature application in treatment of subgrade diseases with the method of grouting and salt injection by steel flower tube. Regulation principle and process control parameters are analyzed,and the effectiveness of subgrade frost damage is analyzed by field salt injection test. Test results show that the frost heave of subgrade in salt injection section decreases obviously,which could validate the control effect of salt injection method by steel flower tube. Frost damage remediation technology with salt injection method by steel flower tube could be applied in seasonal frozen soil region.

关 键 词：季节性冻土 铁路路基 冻害整治 钢花管注盐法 施工工艺 效果分析 

分 类 号：U216[交通运输工程—道路与铁道工程]