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通过雨水集蓄利用的试验研究,得出了各种防渗材料下垫面集雨效率与降雨特性(雨量、雨强)及材料雨前含水至的定量关系。分析得出了不同降水量地区在不同保证率年份的全年集流效率和可集水量.经比较,推荐了由水泥瓦屋面、混凝土庭院和坡面以及水泥砂浆抹面水窖组成的雨水集蓄系统.分析证明,利用这项技术解决人畜饮水困难和发展小片灌溉在技术上和经济上都是可行的,而且可促进山区小型水利发展.
Based on the experiments of rainwater harvesting and utilization, the quantitative relationship between the rainfall collection efficiency and rainfall characteristics (rainfall and rainfall intensity) and moisture content of materials before rain was obtained. Throughout the year, we analyzed the annual catchment efficiency and catchment capacity of different precipitation areas in different guaranteed years. After comparison, a rainwater collection system consisting of a cement tile roof, a concrete courtyard and a slope, and a cement mortar surface water cellar is recommended. The analysis proves that it is technically and economically feasible to use this technology to solve the problem of drinking water for humans and animals and to develop small-scale irrigation. It can also promote the development of small-sized water conservancy in mountainous areas.