河网地区市政道路下穿隧道雨水排水工程设计审查管控要点

Review and Control Key of Rainwater Drainage Engineering Design of Municipal Roads Underpass Tunnel in River Network Area

市政道路下穿隧道是提升交通效率的重要节点设施,但因其特殊的下凹布局极易被水淹而影响交通,甚至造成较大的经济损失。对广州市南沙区的区位特征及排水风险进行了分析,提出河网地区市政道路下穿隧道雨水排水工程设计的9大审查管控要点,并对9大审查管控要点进行了系统性研究,为南沙区及其他类似河网地区的市政道路下穿隧道雨水排水工程设计、审查管控从业者提供了参考。

The municipal roads underpass tunnel is an important node facility to improve traffic efficiency.Due to the special concave layout,it is easy to be flooded,affect traffic and even cause great economic losses.The location characteristics and the drainge risks of rainwater drainage in Nansha District are introduced to propose nine review and control keys of rainwater drainage engineering design of municipal roads underpass tunnel.A systematic study is conducted on the nine review and control keys,which provides references for the designs and controls of municipal roads underpass tunnel in Nansha District and other similar river network areas.