摘要
为探究改建工程对邻近高铁桥梁桩基础的影响,依托贵毕道路改建工程,开展了在高铁桥梁桩基附近进行改建工程施工时的受力性能分析,依据工程给出的下穿设计方案,并结合工程实际情况,采用结构验算法对成贵高铁贵毕高等级公路立交特大桥的2#、3#桥墩桩基础的受力性能进行了计算分析,并将计算结果与规范值进行比较分析,检算桥墩桩基础受力是否满足要求。研究结果表明:改建工程建设对邻近桥墩桩基础的受力状况的影响均满足铁路桥梁运营的受力要求;通过对桥墩桩基础的受力检算,验证了改建工程设计方案的可行性和合理性,可为之后同类型工程建设提供参考依据。
In order to explore the influence of the reconstruction project on the pile foundation of the adjacent high-speed railway bridge,relying on the Guibi road reconstruction project,the mechanical performance analysis of the reconstruction project near the high-speed rail bridge pile foundation was carried out.According to the design scheme of the underpass given by the project,and combined with the actual situation of the project,the mechanical performance of the 2#and 3#pier pile foundations of the Chengdu-Guizhou high-speed railway-Guibi high-grade highway interchange bridge is calculated and analyzed by the structural verification algorithm,and the calculation results are compared with the specification values.It is analyzed and checked whether the force of the pier pile foundation meets the requirements.The research results show that the influence of the reconstruction project on the stress condition of the adjacent bridge pier pile foundations can meet the stress requirements of railway bridge operation;the feasibility and rationality of the reconstruction project design scheme are verified through the force check of the bridge pier pile foundation.It can provide a reference for the construction of similar projects in the future.
作者
关凯升
GUAN Kai-sheng(China Railway Eighteenth Bureau Group Fourth Engineering Co.,Ltd.,Tianjin 300350,China)
出处
《河北地质大学学报》
2023年第3期86-94,125,共10页
Journal of Hebei Geo University
关键词
改建工程
桥墩
桩基础
reconstruction project
bridge pier
pile foundation
