论文部分内容阅读
近日,徐工针对山体隧道施工需求自主研发的XTR260悬臂式隧道掘进机成功下线,标志着徐工正式进入山体隧道施工领域。传统的硬岩型掘进机应用于隧道施工在截割幅度、物料装运、整车结构及高压供电等方面存在局限性,且切割高度较小。采用钻爆法施工危险性大、断面尺寸不可控、成本高及效率低,不能满足隧道施工安全和低成本、高效率的需求。作为国内首台专门用于隧道施工的悬臂式掘进机,其定位切割面积大,切割高度超过7.1 m,对于大断面山体隧道,断面高度可一次截割
Recently, XCMG XT cantilever tunnel boring machine developed independently for the construction needs of mountain tunnels successfully went offline, marking the formal entry of XCMG into the field of mountain tunnel construction. The application of traditional hard rock roadheader in tunnel construction has limitations in cutting amplitude, material handling, vehicle structure and high-voltage power supply, and the cutting height is small. Drilling and blasting method using the construction of a large danger, the section size is uncontrollable, high cost and low efficiency, can not meet the tunnel construction safety and low cost, high efficiency. As the first cantilever boring machine designed for tunnel construction in China, its positioning cutting area is large and its cutting height is over 7.1 m. For large section mountain tunnels, the section height can be cut once