Ghadim Hamed Benisi, Hin Lai Sai
Water Environ Res. 2017 Sep 1;89(9):862-870. doi: 10.2175/106143017X14902968254764.
The Bio-Ecological Drainage System (BIOECODS) is a sustainable drainage (SUDS) to demonstrate the 'control at source' approaches for urban stormwater management in Malaysia. It is an environmentally friendly drainage system that was designed to increase infiltration, reduce peak flow at outlet, improve water quality, through different BMPs, such as grass swale, retention pond, etc. A special feature of BIOECODS is ecological swale with on-line subsurface detention. This study attempted to create a model of ecological swale with on-line subsurface conveyance system with InfoWorks SD. The new technique has been used Storm Water Management Model (SWMM) model to describe overland flow routing and Soil Conservation Service Method (SCS) used to model infiltration or subsurface flow. The modeling technique has been proven successful, as the predicted and observed closely match each other, with a mean error of 4.58 to 7.32%. The calibrated model then used to determine the ratio of the flow exchange between the surface and subsurface drainage system. Results from the model showed that the runoff ratio exchange between the surface and subsurface is 60 to 90%.
生物生态排水系统（BIOECODS）是一种可持续排水系统（SUDS），用于展示马来西亚城市雨水管理的“源头控制”方法。它是一种环保型排水系统，旨在通过不同的最佳管理措施（BMPs），如草沟、蓄水池等，增加入渗、减少出水口的峰值流量、改善水质。BIOECODS的一个特点是带有在线地下滞留设施的生态草沟。本研究试图利用InfoWorks SD创建一个带有在线地下输送系统的生态草沟模型。新技术已被用于雨水管理模型（SWMM）来描述地表径流路径，以及土壤保持服务法（SCS）来模拟入渗或地下径流。该建模技术已被证明是成功的，因为预测值和观测值非常接近，平均误差为4.58%至7.32%。然后，校准后的模型用于确定地表和地下排水系统之间的流量交换比例。模型结果表明，地表和地下之间的径流交换比例为60%至90%。
