华东交通大学学报2015，Vol.32Issue(4)：25-32,8.
盾构隧道下穿铁路股道及火车站站房的影响分析
Influence Analysis of Subway Shield Tunneling on Existing Track and Railway Station Building
摘要
Abstract
Through the research and analysis of field investigation for shield tunnel of Nanning Metro Line # 1 and #2 which are underneath track and train station, based on two-dimensional and three-dimensional numerical mod-els established under each corresponding environmental condition and stimulations of appropriate unit type, this study finds out that the usage of both inside grouting reinforcement and the outside ground reinforcement can help to reduce the maximum track settlement by 18.9 mm and the settling tank by 60 m. The maximum differential set-tlement of pile foundation can be controlled in scope of 4.5 mm for affected area by using grouting reinforcement to build the tunnel which is underneath the train station. It is far less than the permissible value required by regula-tions. It ensures the safety of shield tunnel passing through under Nanning train station and train track. Moreover, it provides valuable experience for numerical simulation of similar projects in the future.关键词
盾构隧道/铁路股道/桩基础/有限元模型/施工阶段分析Key words
shield tunneling/subway fields/subway track/pile foundation/finite element model/construction stage analysis分类
建筑与水利引用本文复制引用
卢华喜,王漪璇,周珍伟,汪雷..盾构隧道下穿铁路股道及火车站站房的影响分析[J].华东交通大学学报,2015,32(4):25-32,8.基金项目
国家自然科学基金项目(50968007) （50968007）
江西省青年科学家培养对象计划(2010DQ01800) （2010DQ01800）
