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一、自卸船的推广及应用 19世纪以来,北美洲的美国和加拿大交界处的五大湖地区,由于有丰富的煤炭、铁矿石等资源,加上丰富的水资源,很快形成美、加大湖区——圣劳伦斯工业走廊,工业和航运获得很大发展。便捷的航运条件和量大而稳定的货源,使该地区成为世界自卸船运输的摇篮。从1903年和1904年建造的“墨内宾”号和“托布卡”号木质结构船体自卸船投入营运以来,至今已有90年的历史。在这90年中,自卸船的技术不断更新、发展,单船载重量及卸船效率等均有很大的提高。至80年代初期,北美大湖区载重
First, the promotion and application of self-dumping vessels Since the 19th century, North America, the United States and Canada at the junction of the Great Lakes region, due to the rich coal, iron ore and other resources, coupled with abundant water resources, the United States quickly formed Great Lakes - St Lawrence Industrial Corridor, industry and shipping have made great progress. Convenient shipping conditions and a large and stable supply of goods have made the area the cradle of the world’s dumping vessels. It has been 90 years old since the inauguration of the “Moabin” and the “Tuobka” wooden structural hull dump vessels built in 1903 and 1904. During these 90 years, the technology of self-dumping vessels has been constantly updated and improved. Both the single-vessel carrying capacity and the unloading efficiency have been greatly improved. By the early 1980s, the North American Great Lakes laden with loads