DOI: 10.5176/2301-394X_ACE18.101
Authors: Yang Dongdong, Zhao Xin, Cao Lei and Bruce C. Anderson
Abstract:
Following on the advances of international research on urban stormwater management, the “resilience” embodied in the term Chinese ‘sponge city’ creates new demands on stormwater management from source control to integrated urban water management. The integrated urban water management focuses on the coupling of several different types of stormwater management, which relates to the municipal pipe network and green infrastructure such as wetlands, rivers and LID elements. The authors hold that the combination of green and grey infrastructure for drainage and coordination of different management systems is crucial to sponge city planning and construction. This work illustrates the creation of a sponge-like stormwater management system (SMS) with landscape requirement and aesthetic needs, using a case study of the SMS for the Reading Cabin at Tianjin University. Moreover, the authors performed continuous prototype observation and recording at the site to examine the effectiveness of the SMS system in managing stormwater. The comparative and observational analysis of the SMS in a rainstorm on July 20, 2016, clearly demonstrates that even in this extraordinary rain event, the green infrastructure system effectively shared the drainage pressure on the municipal pipe network through collection and retention at the early stages. More importantly, this design of the SMS system allowed for timely and easy transition between green and grey management measures and reduced the problem of draining the surface runoff during this rainstorm.
Keywords: sponge city, integrated urban water management, green infrastructure, stormwater management, landscape planning and design, prototype operation & efficiency
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