客运专线无砟轨道铁路线下结构沉降变形观测与评估技术  

Deformation monitoring and assessment technology for substructure of unballasted track on railway passenger dedicated line

作　　者：李明领 

机构地区：[1]中铁十四局集团工程试验检测中心,济南250014

出　　处：《中国工程科学》2009年第1期48-59,共12页Strategic Study of CAE

基　　金：铁道部科技研究开发计划项目(2005K002-A(G)-1)

摘　　要：为满足高速列车安全、舒适性的需要,保证线路的高平顺性,无碴轨道的铺设与运营对路基、桥涵、隧道等线下结构的工后沉降要求非常严格,追求"零沉降"理念。以武广铁路客运专线为基础,系统地介绍了线下结构物沉降变形观测关键技术,数据管理与分析预测系统,提出了工后沉降的预测方法及评估条件与标准,合理确定无碴轨道开始铺设时间,以保证客运专线无碴轨道结构铺设的质量。并提出了一些体会和建议,为正在建设的无砟轨道客运专线提供借鉴。The criterion for residual deformation of Substructure of unballasted track on railway passenger dedicated line is extremely strict in order to satisfy the safety and comfort requirements of the high - speed train. Based on new Wuhan （ Guangzhou railway passenger dedicated line engineering practice, this paper introuduces the key technologies for the deformation monitoring, data management and analysis system, the prediction method and assessment criterion are put forward to determine the reasonable time of unballasted track laying to guarantee the quality of unballasted track. Some advice provide reference for the ongoing unballasted track on railway passenger dedicated line construction.

关 键 词：客运专线无砟轨道 沉降变形观测 分析评估 无碴轨道铺设条件 

分 类 号：TU413.62[建筑科学—岩土工程]