| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 101 === In recent years, climate change increases the intensity and frequency of rainfall and stormwater runoff quantity exceeds the capacity of original drainage systems. On the other hand, water scarcity issue emerges as the challenging water related issue. The US and Taiwan green building requirements LEED and EEWH also emphasize water retention, water use reduction and waste water recycling. The integration management of them can be supportive for water saving, but has not been made.
This research made use of a high-tech plant as a case study, attempted to integrate its stormwater management facilities and drainage systems. It was done through several steps. First step is to review the literature to understand the relevance between rainfall intensity and drainage planning, and organize the stormwater management. After that, calculate the maximum capacity of the plant site drainage systems. Knowing the difficulties of those best management practices (BMP) in the site helps to determine the best water-saving BMP implementation. The garden landscape should be designed before the calculation of its water retention capacity to raise the degree of receptivity quantity of rainfall and drainage contribution ratio.
The research results indicate that the drainage systems in the plant site can cover the high quantity of rainfall compared with BMPs. The BMPs or four landscape facilities are minor alternatives to reduce rainfall runoff. The proposed BMP could reduce 5.33 mm/hr or 2.75% of rainfall runoff; while the designed landscape facilities could reduce 1.06 mm/hr as 0.56%.
In addition to aesthetics and life, the BMPs emphasize environmental conservation and provide contribution on environmental performance. For example, the efficiency of runoff control of permeable pavements and bio-retention is high; the efficiency of reduction of the heat island effect of green roofs is high. The conclusions of this research can provide references for designers to evaluate their stormwater planning.
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