铁道标准设计2016，Vol.60Issue(11)：1-4,4.DOI:10.13238/j.issn.1004-2954.2016.11.001
广深港高速铁路狮子洋隧道减振无砟轨道对周边软土地层影响分析
Analysis of Guangzhou-Shenzhen-Hong Kong High Speed Railway Shiziyang Tunnel Vibration Damping Ballastless Track Effect on Surrounding Soft Soil
摘要
Abstract
To prevent the liquefaction of large section shield tunnel soft soil of Guangzhou-Shenzhen-Hong Kong high speed railway Shiziyang tunnel on account of high-speed train vibration, vibration damping ballastless track is adopted. To investigate the effect of vibration damping measures, this paper establishes the train-track finite element model and the tunnel-soil finite element model to analyze dynamic response and distribution of the tunnel structure and the surrounding soil under the train load, and compares the dynamic shear stress and acceleration with and without vibration damping. The results show that the vibration damping ballastless track can effectively reduce the risk of soft soil liquefaction, improve the safety stock, and achieve the expected goal. The research results may guide the design of tunnel through soft soil.关键词
高速铁路/铁路隧道/盾构隧道/软土/无砟轨道/减振/液化Key words
High speed railway/Railway tunnel/Shield tunnel/Soft soil/Ballastless track/Vibration damping/Liquefaction分类
交通工程引用本文复制引用
许克亮,肖明清,李秋义..广深港高速铁路狮子洋隧道减振无砟轨道对周边软土地层影响分析[J].铁道标准设计,2016,60(11):1-4,4.基金项目
铁道部科技开发计划项目(2006G007-B) （2006G007-B）
