曲线不仅是工务部门进行线路维修和养护的薄弱环节,也是新线工程和线路大修铺放轨排的关键部位。随着铁路建设事业的蓬勃发展和机械化程度的不断提高,目前我国已使用了铺轨机和铺轨龙门架,直接用更换或铺放轨排的方法进行新线工程和线路大修的施工。局大修总队第一大修队,自六五年使用62型铺轨龙门架铺放轨排以来(以铺放25米长的 The curve is not only the weak link in maintenance and repair of the line for the public works department, but also the key part of the new-line project and overhauling of the rail line. With the vigorous development of railway construction and the continuous improvement of mechanization, at present, China has used track laying machines and decking gantries to directly carry out the construction of new line projects and line overhaul by replacing or laying the track rows. Bureau overhauls Corps first major overhaul team, since the use of 62 type laying of gantry rail laying since 62 (since the laying of 25 meters long