摘要
以新建无锡至江阴城际轨道交通桥梁下穿京沪高铁丹昆特大桥工程为依托,运用Midas GTS/NX模拟桥梁施工过程,得到了京沪高铁丹昆特大桥受新建城际轨道交通桥影响产生的墩台位移和单桩承载力变化。结果表明,新建桥梁施工和运营过程中,桥梁桥墩和承台的各向位移均小于变形控制标准;新建桥梁运营之后,单桩最大承载力也小于原本设计的单桩容许承载力。
Based on the project of newly-built Wuxi-Jiangyin intercity rail transit bridge undercrossing Dandong-Kunming super large bridge of Beijing-Shanghai high speed railway,Midas GTS/NX of simulating the construction process of the bridge is utilized to obtain the pier displacement and bearing capacity changes of single pile of the Dandong-Kunming super large bridge of Beijing-Shanghai high speed railway affected by the new intercity rail transit bridge.The results show that,the displacement of bridge pier and bearing platform is less than the deformation control standard in the process of construction and operation of the new bridge;after the operation of the new bridge,the maximum bearing capacity of single pile is also less than the allowable bearing capacity of single pile originally designed.
作者
魏士杰
WEI Shi-jie(China Railway Fifth Survey and Design Institute Group Co.,Ltd.,Beijing 102600,China)
出处
《北方交通》
2021年第1期14-17,共4页
Northern Communications
关键词
桥梁
下穿
高铁
变形
承载力
Bridge
Undercrossing
High speed railway
Deformation
Bearing capacity
