跨敏感水域特大桥桥面径流收集系统方案研究

摘要

本文在调研危化品运输车辆和初期雨水污染物浓度分析的基础上，给出了危化品泄漏量、初期雨水径流量、设计降雨历时等主要参数的确定方法；基于雨水管道极限强度理论，提出了包含纵向截流管及收集池的桥面径流收集系统设计方法；并结合实际工程设计，对多种桥面径流收集及处理方案进行了分析比较，提出了相关建议，从而为今后的特大桥桥面径流收集系统研究起参考和借鉴的作用。%Based on the investigation of dangerous chemicals transport vehicles and the analysis of initial rainwater pollutant concentrations,the determination methods were given for some main parameters,such as leakage rate of dangerous chemicals,initial rainwater runoff discharge,design rainfall duration and so on.based on the ultimate strength theory of rainwater pipelines,the design method for deck runoff collection system was proposed.some schemes for deck runoff collection and treatment were analyzed and compared based on actual projects.And some suggestions were proposed in hope of sheding light on future research and design in this field.