In the national environment for planning roads, railway networks, and urban rail transit, especially for strengthening the transportation infrastructure in the mountains and other areas in the southwest, mountain tunnel construction is increasing. However, the traditional drilling and blasting method, the construction is dangerous, and the section size is not controllable, the cost is high, and the efficiency is low, which can not meet the requirements of tunnel construction safety and low cost and high efficiency. In 2013, XCMG boldly used coal mine boring machines in the field of tunnel construction to develop hard rock tunnel boring machines that adapt to rock excavation and won market opportunities. However, the use of hard rock tunnel boring machines in tunnel construction has limitations in cutting width, material handling, vehicle structure, and high-voltage power supply, and the cutting height is small.
China's first cantilever tunnel boring machine successfully exited Xugong
XCMG conducted extensive research on domestic and foreign markets to understand customer needs, plan R&D, overcome difficulties, overcome key technologies such as large-span cutting arms, hard rock cutting heads, and automatic reeling cables. The XTR260 cantilever tunnel boring machine was recently realized. The success of the offline. As the first cantilever boring machine specially designed for tunnel construction in China, its large positioning and cutting area and cutting height exceeds 7.1 meters. For large-section mountain tunnels, the section height can be cut in place once, and no stratified construction is required to cut the cross-section shape. Freedom, controllable size, large digging rate, strong rock breaking ability, low construction cost, high construction efficiency, etc., will effectively improve tunnel construction quality and efficiency, promote the transformation of domestic tunnel construction modes, and fill the domestic cantilever tunnel boring machine. blank. (This article comes from Xugong Foundation Click to enter the Xugong Online Purchase page )