CAJ | 학술논문

针对城市化进程中流域尺度暴雨洪涝水文特征的变异及径流峰值与总量的增加，采用GIS技术划分子流域并应用数值模拟方法，对流域范围内不同蓄滞渗排与雨洪利用组合方案进行模拟分析及量化研究。研究结果显示，以流域为整体，实施雨洪综合调蓄管理措施明显优于传统的各子流域分散管理方式。以位于美国伊利诺伊州的黑莓溪流域为例，经过优化分析，流域尺度所需的雨洪蓄滞容积，较之于子流域分散蓄滞方式可减少24.7%。在单纯流域蓄滞的基础上加之于源头与社区尺度的低影响开发（LID）与雨洪利用等新型综合管理措施，可将流域尺度的蓄滞容积减少60.3%之多，有益于缓解城市雨洪管理中的蓄滞占用土地、耗资巨大和运行维护困难的结症。本文为流域尺度雨洪综合优化管理决策提供了新的规划评估思路与参考。
침대성시화진정중류역척도폭우홍로수문특정적변이급경류봉치여총량적증가，채용GIS기술화분자류역병응용수치모의방법，대류역범위내불동축체삼배여우홍이용조합방안진행모의분석급양화연구。연구결과현시，이류역위정체，실시우홍종합조축관리조시명현우우전통적각자류역분산관리방식。이위우미국이리낙이주적흑매계류역위례，경과우화분석，류역척도소수적우홍축체용적，교지우자류역분산축체방식가감소24.7%。재단순류역축체적기출상가지우원두여사구척도적저영향개발（LID）여우홍이용등신형종합관리조시，가장류역척도적축체용적감소60.3%지다，유익우완해성시우홍관리중적축체점용토지、모자거대화운행유호곤난적결증。본문위류역척도우홍종합우화관리결책제공료신적규화평고사로여삼고。
Utilizing GIS and hydrologic modeling techniques, this study analyzed various urban stormwater management strategies. Due to data limitation and availability in China, a typical watershed in the United States was chosen as a demonstration. The 185-square-kilometer watershed, located in the vicinity of the City of Chicago, Illinois, USA, has been experiencing urbanization in recent decades. Considering the land use pattern of 2005 as pre-development condition and projected land development of 2040 as post-develop?ment condition, a numeric model was constructed using HEC-HMS software, and hydrologic effects of ur?banization were examined. Moreover,various urban stormwater management measures,such as detention,re?tention, infiltration, and rain water harvesting, were modeled both at sub-catchment scale and watershed scale;the quantitative relationships among the various measures were investigated at watershed scale. The outcomes demonstrate that the sustainable urban stormwater management integrated at watershed level can fully utilize the flood conveying and attenuating capacities of the watershed and urban water courses. As a result, the required detention/retention volume can be reduced significantly, the land use conflicts alleviat?ed,and heavy financial burden lightened. As land scarcity being one of the major barriers to sustainable ur?ban stormwater management in china, this study proposes a new method for planning and evaluating urban stormwater management systems which will create economic benefits and environmental advantages.