排污隧道近距离侧穿既有高铁桥梁桩基设计方案研究

Research on Design Schemes of Sewage Tunnels Passing Through Pile Foundations of Existing High-speed Railway Bridges

随着国内高速铁路网络的大规模修建,其他工程隧道近距离下穿高铁线路的情况也越来越多,但目前针对市政排污管道下穿高铁桥梁桩基的研究却较为稀少。为此,文章结合栗木山河排污隧道近距离下穿贵广高铁旧街大桥桩基的工程实例,从工程技术和经济指标两方面对工程方案进行对比分析,并结合相关规范规定进行方案论证,提出较为可靠的工程方案,以期为类似工程的方案决策提供较好的参考依据。

With the large-scale construction of the domestic high-speed railway network,other engineering tunnels are passing through high-speed rail lines at close distances more and more,but the current research on municipal sewage pipes passing through high-speed railway pile foundations is relatively scarce.This article combines the engineering examples of the Limushan River sewage tunnel passing through the pile foundation of the Guiguang-Guangzhou High-speed Rail Old Street Bridge at a short distance,and compares and analyzes the engineering scheme from the aspects of engineering technology and economic indicators.The engineering scheme provides a good reference for the decision-making of similar projects.