铁道标准设计2017，Vol.61Issue(12)：28-34,7.DOI:10.13238/j.issn.1004-2954.2017.12.007
高铁路基运营期沉降超限治理措施及效果评估
Control Measures for Settlement Overrun of High-speed Railway Subgrade during Operation Period and Effect Evaluation
摘要
Abstract
The control of settlement overrun of high-speed railway subgrade is characteristic of the restriction in time and space,difficult countermeasures and high cost,and may affect the durability of the substructure and train operation,which must be considered in high speed railway maintenance.In order to solve the problem of settlement overrun of high-speed railway subgrade during the operation,the paper puts forward the following measures of integrated engineering management based on field test and theoretical analysis:(1) on both sides of the roadbed,jet isolated pile reinforcement;(2) at the embankment toe,a stress relief hole;(3) at the bottom of the embankment,grout injection through perforated pipe;(4) auxiliary action of pad replacement+fastener raising.Research results are applied in Huning (Shanghai-Nanjing) intercity railway engineering,and the binding settlement test data and TQI values before and after the treatment verify the success of the integrated control measures to provide references for similar engineering practices.关键词
高速铁路/路基沉降/治理措施/测试数据/TQI/评估Key words
High-speed railway/Subgrade settlement/Control measures/Test data/TQI/Evaluation分类
交通工程引用本文复制引用
周洺汉,商拥辉,徐林荣,陈宏伟..高铁路基运营期沉降超限治理措施及效果评估[J].铁道标准设计,2017,61(12):28-34,7.基金项目
国家自然科学基金项目(51078358) （51078358）
国家自然科学基金高铁联合基金重点项目(U1134207) （U1134207）
铁道部科技研究开发计划项目(2012G009C) （2012G009C）
