渡口地处山区,是我国大型钢铁基地之一。1965年开始大规模建设以来,工业和城市建设发展很快,人口迅速增长。随着各类厂房和民用房屋大量建造,挡土墙数量也激剧增加。据估算,截至1980年上半年为止,全市已建挡土墙总长度在30公里以上,砌体总量超过25万立方米,造价达2000余万元。 Ferry is located in the mountainous area and is one of China’s large steel bases. Since the large-scale construction began in 1965, the industrial and urban construction has developed rapidly and the population has grown rapidly. With the large-scale construction of various types of factory buildings and residential houses, the number of retaining walls has also increased dramatically. It is estimated that as of the first half of 1980, the city has built a retaining wall with a total length of 30 kilometers or more, and the total amount of masonry exceeds 250,000 cubic meters. The construction cost has reached more than 20 million yuan.