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采用MIKE 21与MIKE 11耦合模拟的方式分析了北京市新机场周边地区地表径流和河道洪水漫溢的过程,模拟不同情景下地表积水分布情况,评估新机场建设对周边村庄造成的积水风险,并提出对策解决积水问题。研究结果表明,新机场建设加剧了周边地区积水风险,通过疏挖现状河道和新挖排水明渠的措施,可有效解决研究区积水问题,并将研究区的排涝能力提高至20年一遇降雨标准。
The coupled simulation of MIKE 21 and MIKE 11 was used to analyze the process of surface runoff and river flooding in the surrounding areas of the new airport in Beijing, simulate the distribution of surface water in different scenarios, and assess the risk of water accumulation in the surrounding villages caused by the construction of the new airport. And propose countermeasures to solve water problems. The results of the study indicate that the construction of the new airport has aggravated the risk of water accumulation in the surrounding areas. Measures such as dredging the existing river channels and newly digging open drainage channels can effectively solve the problem of water accumulation in the study area and increase the drainage capacity in the study area to 20 years. Rainfall standard.