中英桥面泄水口水力计算研究

以斯里兰卡南部高速延长线项目为实例,按现行《英国桥梁设计手册》(HA102/00)为标准,进行高速公路桥面格栅式排水设计.包括设计径流量、缘石排水沟允许水流流量、泄水口间距三个方面的中英规范对比分析,并将《英国桥梁设计手册》(HA102/00)手册的排水设计方法以实例展示出来,为研究两国标准差异提供依据.

Study on Hydraulic Computation of Sino-British Bridge Deck Drain Outlets

Taking an expressway extension project in the southern part of Sri Lanka as an example, according to the current British Bridge Design Manual HA102/00, the expressway bridge deck grilling drainage is designed. The Sino-Bridge standards are compared and analyzed from three aspects of design runoff, allowable flow rate of kerb drainage ditch and spacing between drain outlets. The drainage design process of HA102/00 manual is displayed as an example to provide a basis for studying the differences between the standards of these two countries.