摘要
为研究富水细砂地层某曲线隧道超近距侧穿施工对既有立交桥变形的影响,以临近既有立交桥的新建曲线隧道工程为背景,对地铁盾构曲线隧道工程施工进行了设计,并用MIDAS计算分析程序对富水细砂地层曲线隧道超近距侧穿既有立交桥施工过程进行了模拟分析。研究了曲线隧道超近距侧穿施工过程中既有立交桥位移变化特征;并与仿真计算结果对比分析,二者变化趋势基本一致,进一步佐证模拟真计算的可实施性。
In order to study the influence of the construction of a curved tunnel in water-rich fine sand stratum on the deformation of the existing overpass, the design of the construction of the curved tunnel for Metro Shield is carried out in the background of the newly built curved tunnel near the existing overpass, the construction process of curve tunnel crossing existing overpass in water-rich fine sand stratum is simulated and analyzed by MIDAS calculation and analysis program. The displacement variation characteristics of the existing overpass during the construction of curve tunnel with super-close side-crossing are studied, and compared with the simulation results, the trend of the two is basically consistent, which further proves the feasibility of simulation calculation.
作者
权威
权县民
易领兵
胡楠
徐永鹏
聂善军
梁宇
刘胜欢
QUAN Wei;QUAN Xianmin;YI Lingbing;HU Nan;XU Yongpeng;NIE Shanjun;LIANG Yu;LIU Shenghuan(China Traffic Information Technology Group Co.,Ltd.,Beijing 100088,China;China Traffic Construction Co.,Ltd.,Beijing 100088,China;China Construction Eighth Engineering Bureau Co.,Ltd.,Shanghai 200122,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S02期2943-2947,共5页
Building Structure
关键词
富水细砂地层
曲线隧道
超近距侧穿
变形
立交桥
water-rich fine sand stratum
curved tunnel
super-close-in lateral crossing
deformation
overpass
