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杜草隧道内铺设的普通线路,因钢轨接头伤损,给设备的正常使用、维修以及安全运输工作带来一系列问题,。1991年11月,我们与北方交通大学合作,针对隧道实际,在无长轨运输车、铺轨设备及小型焊机的条件下,利用栓胶冻结接头铺设无缝线路。 1 杜草隧道概况 杜草上行隧道是1980年9月18日运营通车,隧道全长3900.53m,进口(哈方)有487.08m为450m半径曲线,出口(牡方)有175.21m为600m半径曲线,中间直线3237.64m,最大坡
Du Fu tunnel laying of ordinary lines, due to rail joints damage to the normal use of equipment, maintenance and safety of transport to bring a series of problems. In November 1991, in cooperation with Northern Jiaotong University, we conducted seamless tunneling using a bolted-on frozen joint under the condition of no long-haul trolley, track laying equipment and small welder in view of tunnel actuality. 1 Ducao Tunnel Overview Ducao upstream tunnel was opened to traffic on September 18, 1980 with a total length of 3900.53m and a 487.08m radius of 450m at the entrance (Hada) and a radius of 600m at the exit (Mufang) , The middle straight line 3237.64m, the largest slope