| With the fast development of city,the ratio of impervious area has increased significantly,which makes the problems about rainwater becoming more and more serious,such as urban water logging, water pollution, loss of rainwater resources.As an important part during the city construction,park green space plays an important strategic role during the alleviation of problems about rainwater.Matched it with park design,this article intends to increase rainwater utilization including infiltration and collection in the scales of the park,which may reduce the discharge rainwater,absorb part of rainwater from surrounding areas,relief the pressure of downstream piping,and even make contributions to easing up the current serious problem of urban rainwater in a way.This article had a research about the relative theory and case both at home and abroad in depth,conducted a survey of the water consumption and specific forms of rainwater utilization in the comprehensive parks of Wuhan,analyzed the advantages and disadvantages of the road, architecture,water system,terrain and plants for the rainwater utilization from the design level,and summed up the problems of park design for rainwater utilization.lt had a analysis of the favorable conditions for rainwater utilization,and calculated the rainwater utilization potency of the comprehensive parks in Wuhan.Combined with the construction guidelines of Sponge city spreaded by the ministry,it choosed some appropriate facilities of rainwater utilization.According to their concept and function and the usage in Wuhan,it analyzed their applicability in comprehensive park of Wuhan.Selecting and arrange the facilities according the source treatment,intermediate control and terminal storage of rainwater runoff process.The main part of this article is the fifth chapter.With the goal of rainwater utilization,it summarized the design strategies of the comprehensive parks in Wuhan according to their current situation of rainwater utilization,and discussed approaches to improve rainwater utilization in parks combined with excellent projects of park design for rainwater utilization at home and abroad.To improve the rainwater utilization,it put out a series of detailed design for the road, architecture,water system, terrain and plants,which are the five main aspects of park design.At last, it discussed the possibility and necessity for the promotion of park design among the park green space and even the urban green space scale in Wuhan and summarized the shortcomings of this article. Expecting that the concept of the rainwater utilization would be promoted and realized on ground, using every inch of the green space to solve its and its surrounding’ rainwater. When every point, line and square combined together, it will consume the city rainwater by the urban green space much more... |