1前言浙赣线是我局管内的四大干线之一。根据铁道部总体部署和铁路走向市场的迫切需要，我局相继对津浦、沪宁线进行了较大幅度的线路提速实践，取得了一定的成效。随着改革开放的不断深入和市场经济的进一步发展，华东沿海及东部地区的经济快速增长，因而对连接这些地区与中南 1 Preface The Zhejiang-Jiangxi line is one of the four main lines within our bureau tube. According to the overall plan of the Ministry of Railways and the urgent need of the railways to go to the market, our bureau conducted more substantial speed-raising practices on the lines of Jinpu and Shanghai-Nanjing lines and achieved some success. With the continuous deepening of the reform and opening up and the further development of the market economy, the economy in east China’s coastal areas and the east has been rapidly growing. As a result,