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排水工程一直以来都是世界城市在建设中遇到的难题。日本东京、英国伦敦、法国巴黎等一些国外大城市的下水道系统建设维护经验,或许能为总是暴雨积水成灾的中国大城市带来启示。可叹东京“地下神殿”深达60米畅通无阻东京地区的地下排水系统于1992年开工,2006年竣工,堪称世界上最先进的下水道排水系统。它由一连串混凝土立坑构成,地下河深达60米。东京的雨水有两种渠道可以疏通:靠近河渠地域的雨水一般会通过各种建筑的排水管,以及路边的排水口直接流入雨水蓄积排放管道,最终通过大支流排入大海;其余地域的雨
Drainage engineering has always been a problem encountered in the construction of the world’s cities. The experience of sewer system construction and maintenance in some large foreign cities, such as Tokyo in Japan, London in the United Kingdom, and Paris in France, may provide inspiration for China’s major cities, which are always flooded with torrential rains. Awe-inspiring Tokyo’s “Underground Temple” is 60 meters deep. Unobstructed The underground drainage system in Tokyo started in 1992 and was completed in 2006, making it the world’s most advanced sewer drainage system. It consists of a series of concrete pits, with underground rivers up to 60 meters deep. There are two channels for rainwater in Tokyo to be dredged: the rainwater near the canal area is generally passed through the drainage pipes of various buildings, and the drains at the roadside directly flow into the rainwater accumulating discharge pipe, and finally discharged into the sea through the large tributaries; the rest of the rain