复杂市政工程下穿高速铁路风险分析

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中图分类号：U211；TQ178 文献标志码：A

文章编号：1001-5922（2025）10-0211-04

Risk analysis of complex municipal engineering underpassing high-speed railway

WU Hua1， JIAO Changbin² （1.EPC Design Institute of China Construction Fourth Engineering Division Co.，Ltd.，Guangzhou ，China; 2. Beijing Oriental Yuhong Waterproof Technology Co.，Ltd.，Beijing ，Chia）

Abstract： Taking the municipal engineering of Lucheng Road underpassing 350km/h high-speed railway project ina cityas an example，the risk assessment standard of municipal engineering underpasing high-speed railway is studied.Through the numerical simulationoffinite element analysis software PLAXIS，thesettlement deformation of pier top，longitudinal horizontaldeformationof pier top，transversehorizontal deformationof pier topandaxial force of pile foundation of high-speed railway during the construction of complex municipal engineering are analyzed.The construction and operation risks of Lucheng Road municipal engineering are evaluated，which provides a reference for similar projects to safely cross high-speed railway.

KeyWords：municipal engineering;high-speed railway;underpass engineering;numerical simulation;risk assessment

高铁铁路对线路平顺性要求高，邻近高速铁路施工会导致附近地层受到扰动，高速铁路结构随之发生移动和变形，进而引起高速铁路结构产生变化，如果不能正确评估施工对高速铁路带来的潜在危险，则可能发生难以估计的灾难性后果[1-4]。（剩余4675字）