出山店水库灌区工程淮北干渠穿越京广铁路影响性分析  

Analysis of the Impact of the Huaibei Main Canal Crossing the Beijing Guangzhou Railway in the Chushandian Reservoir Irrigation Area Project

作　　者：张壮 ZHANG Zhuang(Zhengzhou Institute,China Railway Fifth Survey and Design Institute Group Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]中铁第五勘察设计院集团有限公司郑州院,河南郑州450000

出　　处：《河南科技》2025年第3期65-69,共5页Henan Science and Technology

摘　　要：【目的】研究输水管道采用机械顶管法下穿京广铁路,在施工过程中对铁路的影响。【方法】以河南省出山店水库灌区工程淮北干渠穿越京广铁路为例,采用Midas/GTS软件建立三维计算模型,并在京广铁路上下行路基沿线和接触网支柱位置布置数值模拟位移测点,进行位移监测。【结果】结果表明,采用机械顶管法施工下穿京广铁路时,引起路基结构最大竖向和横向附加位移值分别为-1.117 mm和0.060 mm,引起接触网支柱最大竖向和横向附加位移值分别为-1.191 mm和-0.021 mm。【结论】本次施工引起的铁路路基和接触网支柱位移变形均满足相应规范要求,研究成果为今后类似新建工程下穿既有铁路施工提供了一定的参考。[Purposes]This paper studies the influence of mechanical pipe jacking method on the railway in the construction process of water pipeline underpassing Beijing-Guangzhou railway.[Methods]Taking the Huaibei main canal crossing the Beijing-Guangzhou Railway in the Chushandian Reservoir Irrigation Area Project in Henan Province as an example,a three-dimensional calculation model was established using Midas/GTS software,and numerical simulation displacement measurement points were arranged along the up and down roadbeds and contact network pillars of the Beijing-Guangzhou Railway for displacement monitoring.[Findings]The results show that when using the mechanical pipe jacking method to construct the underpass of the Beijing Railway,the maximum vertical and horizontal additional displacement values of the roadbed structure are-1.117 mm and 0.060 mm,respectively,and the maximum vertical and horizontal additional displacement values of the overhead contact system pillars are-1.191 mm and-0.021 mm,respectively.[Conclusions]The displacement and deformation of the railway subgrade and contact network pillars caused by this construction meet the corresponding regulatory requirements,and the research results provide a certain reference for similar new construction projects crossing existing railways in the future.

关 键 词：机械顶管法 铁路路基 位移 数值模拟 

分 类 号：TV512[水利工程—水利水电工程] U231[交通运输工程—道路与铁道工程] TU943[建筑科学—建筑技术科学]