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一、前言一些统计资料表明,我国沿海京沈、京沪、京广几条干线的年货运量一般皆达到4000万吨以上,客运量达到30对以上,远期增长还要迅速,例如,预测沈山线2000年货运量将达6800万吨,客车对数58对,完成如此巨大的运输任务,必须采取行之有效的技术组织和技术改造措施。提高既有铁路输送能力主要体现在提高列车牵引重量、列车行车密度和列车运行速度上,在这三大措施中,千方百计提高列车牵引重量(包括开行整列式重载列车、组合列车、或单元列车及扩大客车编组等)和增加行车密度,又应是首先考虑的切实可行的重要措施,
I. Preface Some statistics show that the annual cargo traffic of several major routes along the coast of Beijing, Shenyang, Beijing, Shanghai and Beijing-Guangzhou lines are generally over 40 million tons and the passenger traffic volume is above 30, and the long-term growth is even faster. For example, the forecast In 2000, the freight volume of Shen Shan Line will reach 68 million tons and the number of passenger cars will be 58 pairs. To accomplish such a huge transportation task, effective technological organization and technological transformation measures must be taken. To improve the existing rail transport capacity is mainly reflected in improving the train traction weight, train driving speed and train speed, in these three measures, do everything possible to improve train traction weight (including the opening of the whole train heavy haul train, train or unit train And the expansion of bus grouping, etc.) and increase traffic density, but also should be considered first of all practical and important measures,