摘要
为研究某高速公路桩板结构下穿运营高铁桥梁简支梁地段设计方案的可行性,结合某实际工程,对该工程分别采用MIDAS-GTS软件进行仿真分析和对各施工阶段进行现场监测,并依据《公路与市政工程下穿高速铁路技术规程》新规范进行了评估,结果表明,高速铁路的附加变形均符合新规范要求,高速公路桩板结构下穿高铁简支梁地段设计方案切实可行,变形较大的沉降仿真分析结果与实测数据结果对应较好,证明仿真分析结果可以作为设计施工方案可行性判断的依据。
To study the feasibility of the design scheme for an expressway pile-sheet structure undercrossing the simply supported beam section of a high-speed railway bridge in operation,this paper conducts simulated analysis with the software MIDAS-GTS and field monitoring at each stage of the construction based on a real project,and carries out evaluation according to the new Technical Specification for Highway and Municipal Engineering Undercrossing High Speed Railway.Results show that additional deformation of the high-speed railway conforms with the new specification,which verifies the feasibility of the design scheme for the expressway pile-sheet structure undercrossing the simply supported beam section of the high-speed railway bridge.Moreover,the results of simulated analysis on subsidence with large deformation correspond well with actual measurements,and provide a basis for determining the feasibility of the design and construction scheme.
作者
杨学林
YANG Xuelin(China Railway Design Corporation,Tianjin 300308,China)
出处
《铁道标准设计》
北大核心
2021年第7期113-118,共6页
Railway Standard Design
基金
中国铁路设计集团有限公司科技研究开发计划重点课题(2020YY240604)。
关键词
高速公路
桩板结构
高速铁路
沉降
expressway
pile-sheet structure
high-speed railway
subsidence
