摘要
以处于南通市高水系和低水系的两种高密度建成区为例,探讨了通过对内河水位的优化来最大程度地提高区域排水防涝能力的可行性,尽量避免大规模翻建。研究结果表明,高水系区域河道水位下降0.2m时翻建比例下降14.1%,河道水位再下降0.3m时翻建比例下降7.0%;低水系区域河道水位下降0.4m时翻建比例下降2.6%,河道水位再下降0.3m时翻建比例下降2.8%,高水系区域排水管渠需翻建的比例下降程度较低水系区域大。
This paper introduced two types of built-up area located separately in high river stage and low river stage in Nantong City as an example. It was about to improve the feasibility of regional flood control and water convention＇s capacity in maximum degree through the optimization of river stage and to prevent large-scale reconstruction. The results showed that when the water level of river in high river stage area decreased 0. 2 meter, the reconstruction ratio would decrease 14. 1 %; if the water level would decrease 0. 3 meter more, the reconstruction ratio decreased 7% more. In low river stage area, when the river water level decreased 0. 4 meter, the reconstruction ratio would decrease 2. 6%; if the water level decreased 0. 3 meter more, the reconstruction ratio would decline 2.8%. The reconstruction ratio in high river stage area would be higher than that in low river stage area.
出处
《给水排水》
CSCD
北大核心
2016年第9期45-49,共5页
Water & Wastewater Engineering
基金
国家自然科学基金项目(51408225)
国家水体污染控制与治理科技重大专项(2013ZX07304-002)
