基于水文循环的低影响开发设计及效果评价

发布时间：2018-01-06 06:36

本文关键词：基于水文循环的低影响开发设计及效果评价　出处：《天津大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着城市化高度发展,低影响开发设施因其能够在恢复原始水文循环的显著作用,而在雨洪管理和城市设计中逐渐起到重要作用。低影响开发设施的表现因不同气候条件而明显不同。本文选取五种低影响开发设施,评估其在中国北方半干旱气候下对水平衡和雨洪管理的作用。研究采用数值模型SWMM(Storm Water Management Model)在模拟连续10年条件下的工况,引入滞蓄性能指标和雷达图进行评价。研究发现五种低影响开发设施在水平衡和雨洪管理方面表现各异,其中渗透铺装在除延迟洪峰时间之外的指标均表现最佳。长时间序列的数值模拟,辅以两种评价方法能够为决策者提供关于设施和性能的设计依据。数据挖掘是从大量的数据中提取额隐藏于其中信息的重要方法。数据挖掘有助于为研究人员和决策者作出准确的决定,因为本文采用基于SWMM模拟结果的数据来进行数据挖掘,以分析低影响开发设施的性能,获取最佳组合。本部分研究选取天津空港经济开发区作为案例,研究低影响开发设施通过提高下渗性能来改变水文循环的效果。三种低影响开发设施(集水箱、生态滞蓄池和渗透铺装)作为例子,分别加载到连续11年条件下的SWMM模型,以获得数据,进而通过数据发掘得到最佳组合方案。研究证实此数据挖掘方案能够为水文工作者提供设计依据。
[Abstract]:With the high level of urbanization, low-impact development facilities have played a significant role in restoring the original hydrological cycle. But in the rain flood management and urban design gradually plays an important role. The performance of low-impact development facilities is obviously different with different climatic conditions. This paper selects five low-impact development facilities. To evaluate its effect on water balance and rain flood management in semi-arid climate of northern China. The numerical model SWMM(Storm Water Management Model is used in this study. The operating conditions are simulated under the condition of 10 consecutive years. The hysteretic storage performance index and radar map are introduced to evaluate. It is found that the five low-impact development facilities are different in water balance and stormwater management. The index of permeation pavement is the best except the delay Hong Feng time. The numerical simulation of long time series. Data mining is an important method for extracting amounts of information from a large amount of data hidden in it. Data mining helps researchers and researchers. Decision makers make accurate decisions. Because this paper uses data based on SWMM simulation results to analyze the performance of low-impact development facilities to obtain the best combination. This part of the study selected Tianjin Airport Economic Development Zone as a case. Three low-impact development facilities (water collecting tank, ecological stagnant storage tank and permeable pavement) were studied to change the effect of hydrological cycle by improving the performance of infiltration. The SWMM model is loaded into the SWMM model for 11 consecutive years to obtain the data, and then the best combination scheme is obtained by data mining. The research proves that the data mining scheme can provide the design basis for hydrological workers.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU992;TV213.9

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