1949年解放时,半封建半殖民地的旧中国给胜利的中国人民留下的破旧港口,一共只有119个泊位,其中万吨级深水泊位60个。 新中国成立后,为了适应运输上的需要,1951年有重点地对码头进行了加固和改造,在塘沽新港对3000吨级-6米钢板桩码头,用“穿针引线”法增加一道拉杆加深至-9米;同年在上海港重建了董家渡煤三栈 At the time of liberation in 1949, the old ports of semi-feudal and semi-colonial China left victorious Chinese people with only a total of 119 berths, of which 60 were 10,000-ton deep water berths. After the founding of new China, in order to meet the needs of transportation, in 1951, the pier had been emphatically reinforced and rebuilt. In Tanggu Newport, a tie rod was added to the 3,000-ton- 9 meters; the same year in Shanghai Port reconstruction Dongjiatu three stacks