摘要
北京地铁12号线人民大学站-大钟寺站暗挖区间长距离平行穿越联想桥.为减小区间施工对桥梁的影响,除桥梁自身保护措施外,从横通道施工、区间结构主体施工及车站主体结构端墙施工方面提出了施工控制措施;建立了区间侧穿桥梁的三维有限差分模型,分析了不同阶段桥桩位移特征.三维计算结果验证了区间控制措施的可行性,结论可为类似工程提供参考.
Ren—da section of Beijing No.12 metro parallel crossed Lianxiang Bridge in a long—distance.In order to reduce influence by tunnel construction,some measures in aspect of passage tunnel,tunnel section and metro station were proposed except some self-protection measures of bridge.3D finite difference model of mining tunnel was built for parallel crossing bridge in along-distance.Characteristic of bridge piles in different construction stages was analyzed in detail.Feasibility of the construction measures was verified by numerical analysis.The experiences could be referred in similar projects in the future.
作者
郎瑶
Lang Yao(China Railway Fifth Survey and Design Institute Group Co.Ltd.,Beijing 102600,China)
出处
《铁道建筑技术》
2019年第S02期197-201,215,共6页
Railway Construction Technology
基金
中铁第五勘察设计院集团有限公司科研课题(T5Y2015-C10).
关键词
暗挖区间
长距离
平行穿越
桥梁
控制措施
数值模拟
mining interval
long distance
parallel crossing
bridge
construction measure
numerical simulation
