一、地下渠道建设的历史上海郊区地下渠道是随着机电排灌事业的发展而逐渐发展起来的。随着机电排灌事业的发展,明渠压占土地的面积逐年增多。为了解决占地过多的矛盾,1964年冬,南汇县周浦乡沈西村自力更生制作混凝土瓦筒, First, the history of underground channel construction Underground channels in Shanghai suburbs with the development of mechanical and electrical drainage and irrigation gradually developed. With the development of electromechanical irrigation and drainage, the area under which open channels take up land has been increasing year by year. In order to solve the problem of excessive land occupation, in the winter of 1964, Shen Xi Village, Zhoupu Township, Nanhui County, self-relied to produce concrete tile,