解放以来,我国的市政供水事业虽然发展很快,比解放初期增加了12倍,但还不能同经济建设的发展和人民生活的不断改善相适应,许多城市供水非常紧张。上海市水的供求矛盾一度十分突出,低压区面积有一年曾占整个供水面积的1/4;市区不少工厂转而大量开采地下水,造成地面急剧沉降,高达每年93毫米。当然市政建设的“骨”与“肉” Since the liberation, China’s municipal water supply business has developed rapidly, 12 times more than the initial period of liberation. However, it cannot be adapted to the development of economic construction and the continuous improvement of people’s lives. Many cities’ water supply is very tight. The contradiction between the supply and demand of water in Shanghai was once very prominent. The area of ​​the low-pressure area once accounted for 1/4 of the entire water supply area. Many factories in the urban area turned to groundwater in large quantities, causing the ground to settle rapidly, reaching as high as 93 mm per year. Of course, the “bone” and “meat” of municipal construction