关于“大院”雨水规划设计的几点意见□蔡振环在我国城市建设发展过程中，相继出现了很多＂大院＂。按照＂大院＂功能，大体可分为：建筑大院、工业大院和矿山大院。这些＂大院＂给城市和矿山的规划建设工作带来许多新问题。现仅就雨水排水规划中的问题谈几点意见。雨水排... Several Opinions on the “Grand Courtyard” Rainwater Planning and Design □ Cai Zhenhuan In the process of urban construction and development in our country, there have been many “large courtyards”. According to the function of the “big yard”, it can be broadly divided into: a building compound, an industrial compound, and a mine compound. These “grand yards” brought many new problems to the planning and construction of cities and mines. Only opinions on the problems in rainwater drainage planning will be discussed. Rainwater row...