摘要
以八一路武汉大学段下穿隧道为例,基于降雨资料及SWMM模型分析下穿隧道排水设计。下穿隧道排水首先应在道路竖向上保证隧道汇水面积可控,应利用在隧道口设置道路反坡来保障。隧道排水存在汇水面积小、汇流时间短等特点,在保证隧道汇水面积可控的前提下,可利用当地降雨统计资料对隧道排水能力进行校核。排水管涵淤积程度是影响地区是否渍水以及渍水程度的重要影响因素,应提高管涵清淤频率。
Based on the rainfall data and SWMM model, the drainage design of the Bayi road tun- nel at the section of Wuhan University was analyzed. The catchment area of the tunnel must be under control through changing road vertical space which must be carried out by the road back slope. The tun- nel drainage has characteristics of small catchment area and short residence time. The tunnel drainage a- bility can be checked by local rainfall statistics under the precondition that the tunnel catchment area is controllable. Pipeline deposition is the important influence factor of waterlogging. The pipe culvert dred- ging frequency should be improved.
出处
《中国给水排水》
CAS
CSCD
北大核心
2014年第8期45-48,共4页
China Water & Wastewater
关键词
下穿隧道
汇水面积
暴雨水管理模型
道路反坡
underpass tunnel
catchment area
stormwater management model
road backslope
