管线下穿鲁南高铁安全影响研究

Study on Safety Impact of Pipeline passing through Lunan High-speed Railway

以济宁市引黄西线工程(一期)下穿鲁南高速铁路为实例,对管线采用钻孔桩防护下穿高铁施工过程对既有高铁的影响进行分析。通过定性分析及定量计算验证,管线工程施工及运营会对高铁桥梁结构产生一定影响,在考虑其影响后,高铁桥梁位移、桩基受力等计算结果均满足规范要求,管线工程方案总体可行。

Taking Jining West Yellow River Diversion Project(phase I)as an example,this paper analyzes the impact of the construction process of the pipeline under the protection of bored piles on the existing high-speed railway.Through qualitative analysis and quantitative calculation verification,the construction and operation of pipeline engineering will have a certain impact on the railway bridge structure.After considering its impact,the calculation results of railway bridge displacement and pile foundation stress meet the specification requirements,and the pipeline engineering scheme is generally feasible.