基于环保设计理念的高速公路桥梁排水设计

利用水文水力基本原理,研究桥梁纵向集水管径的计算方法,基于环保设计理念,提出了对桥面径流进行部分收集和全面收集排水设计方案,推导出部分收集方案的集水管最小面积计算公式,采用试算法计算桥面径流集水沟管最小过水断面尺寸,最后将其应用于工程实践。

Bridge Draniage Design Based on Enviromental Protection Idea

Hydrological and hydraulic principle was used to study the calculation method of the longitudinal pipe diameter of bridge catchment. Based on the idea of environmental protection design,the drainage design schemes of partly and comprehensively collecting the runoff on the bridges deck were put forward, and the formula of minimum catchment pipe area of partly collecting scheme was derived. Then, the calculation steps of trial method were used to calculate the minimum size of wetted cross section on the catchment ditch and pipe of the runoff on the bridges deck, and it was utilized in engineering practice in the end.