摘要
针对建筑小区尺度海绵措施的径流减控效果实际应用问题,选取北京城市京水小区为研究区域,应用XPDrainage构建水文水力学模型,通过海绵措施改造情景设置与模拟,系统分析调蓄池、下凹式绿地和透水铺装等3种典型海绵措施的径流减控效果。结果表明:洪峰减控效果为下凹式绿地>调蓄池>透水铺装,径流量减控效果为调蓄池>下凹绿地>透水铺装,各类海绵措施对10年一遇以下重现期降雨径流的削减延迟效果较好,当降雨重现期达到10年一遇及以上时,径流量和洪峰流量削减比例不同程度降低,对于高重现期降雨蓄滞效果不显著,研究结果可为北京城市小区海绵措施改造提供重要的参考价值。
Aiming at the practical application of the runoff reduction and control effect of the spongemeasures on the residential district, scale, the Jingshui Community of Qinghe river basin in Beijing wasselected as the research area. Based on XPDrainage, the hydro-hydraulic model was established. Thesponge measures were used to modify the scenario settings and simulations and the application effect ofthree typical sponge measures such as regulation and storage pool, concave green land and permeablepavement were evaluated. The results showed that: from the comparative analysis of the reduction and control effect of flood peak, concave green land > regulation and storage pool > permeable pavement,while from the comparative analysis of the reduction and control effect of runoff, regulation and storagepool > concave green land > permeable pavement. The sponge combination measures had a better effecton the reduction and delay of rainfall runoff, flood peak flow and peak emergence time in the lowrecurrence period of 10 years or less. When the rainfall recurrence period reached 10 years or more, thereduction ratio of runoff and flood peak flow were reduced to different degrees, and the effect of rainfallstorage stagnation was not significant for the high recurrence. The output of this paper could provide avaluable reference for sponge measures construction of Beijing urban community.
作者
李永坤
韩建立
罗彬珈
LI Yongkun;HAN Jianli;LUO Binjia(Bejing Water Science and Technology Institute,Bejjing 100048,China;.2 Beijing Engineering Research Center for Non-Conventional Water Resources Utilization and Water Saving,Beijing 100048,China;Beijing Beiyun River Management Office,Beijing 101100,China;Hohai University,Nanjing 210098,China)
出处
《北京水务》
2020年第3期55-59,共5页
Beijing Water
基金
国家水体污染控制与治理科技重大专项2017ZX07103-002:北京市海绵城市建设关键技术与管理机制研究和示范
2017ZX07103-007:北京城市副中心高品质水生态与水环境技术综合集成研究。
