秦沈客运专线是一条高等级铁路客运专线,其轨道采用一次性铺设跨区间的无缝线路,要求竣工时的线路允许行车速度达到16 0km/h。对于该线路的施工,关键在相应的施工设备。为此,中铁工程机械研究设计院和中铁一局集团、武汉工程机械厂联合研制了LDY8型运枕龙门起重机(图1)。该机与 Qin-Shenyang Passenger Dedicated Line is a high-grade railway passenger dedicated line, the track using a one-time laying of seamless lines across the interval, requiring the completion of the line to allow traffic speeds up to 16 0km / h. For the construction of the line, the key in the corresponding construction equipment. To this end, China Railway Engineering Machinery Research and Design Institute and the China Railway One Bureau Group, Wuhan Engineering Machinery Plant jointly developed the LDY8 type transom gantry crane (Figure 1). The machine and