基于城市暴雨强度公式,应用芝加哥降雨过程线模型产生了典型降雨过程曲线,并对清华大学校园内一个典型雨水排水系统进行了模拟运算和分析。研究中采用我国各大城市普遍使用的暴雨强度公式类型和国际上普遍使用的暴雨管理模型(Storm Water Management Model,SWMM),将芝加哥降雨过程线模型应用在排水系统模拟中,并对模拟结果进行了分析。该方法可作为城市排水系统模拟的典型应用流程,可用于对排水管网系统服务性能进行总体评价、瓶颈识别以及辅助管网系统的改造和更新方案设计,对提高城市排水系统的规划设计和运行管理水平有重要借鉴意义。
By the means of 3S technology,the landscape of Beijing was divided into 6 primary landscape types and 18 landscape patch types in the study,and a series of indexes were calculated by models to analyze the special stru...
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By the means of 3S technology,the landscape of Beijing was divided into 6 primary landscape types and 18 landscape patch types in the study,and a series of indexes were calculated by models to analyze the special structure of Beijing *** results show: that the forest land is the maximal and basal landscape patch type(area proportion is 42.534%),farmland(28.888%)and construction area(16.639%) are also the main landscape types in *** landscape patch types and landscape patch categories levels,the landscape patch distributon is centralized,and patch shape is simple,the main landscape patch fractal dimension indexes are under 1.1,so urban landscape pattern is highly influenced by human disturbance.
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