Optimized water surface ratio and pervious surface proportion in urbanized riverside areas
Optimized water surface ratio and pervious surface proportion in urbanized riverside areas
复制标题
城市化滨江地区水面比例和透水面比例优化
DOI：
10.1007/s12665-013-2977-8
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发表时间：
2014-07-01
影响因子：
2.8
通讯作者：
He, Shuang
中科院分区：
文献类型：
--
作者：
Gao, Cheng;Liu, Jun;He, Shuang
在城市化大型滨江水区，最佳的水面率和透水面比例组合可以降低内涝风险。本研究提出用库容曲线法计算排水模数，其实质是假设排水区为水库，经非恒定流计算后绘制库容曲线。采用蓄水量曲线法计算了不同水面率和透水比例下的排水模数。这样做是为了通过回归分析确定这些变量之间的定量关系。结果表明，大型城市化滨江地区的排水模数与水面率呈良好的指数函数关系，与透水面率呈线性关系。利用综合影响模型和代价函数，通过最小化代价函数，得到了水面率（6.65%）和透水面率（26.4%）的最优组值。
An optimal group of water surface ratios and pervious surface proportions can reduce the risk of waterlogging in large urbanized riverside areas. In this study, the Storage Capacity Curve Method is proposed to calculate the drainage modulus, the essence of which is based on the assumption that the drainage area is a reservoir; and then draw the storage capacity curve after unsteady flow calculation. A series of drainage modulus is calculated with varying water surface ratio and pervious proportion using the Storage Capacity Curve Method. This is done in order to determine the quantitative relationship among these variables through regression analysis. The results indicate that the drainage modulus of a large urbanized riverside area has a good exponential function relative to the water surface ratio and has a linear relationship with the pervious surface proportion. By using an integrated impacts model and a cost function, the optimal group values of the water surface ratio (6.65 %) and the pervious surface proportion (26.4 %) are obtained by minimizing the cost function.