Recently, good news came from the snow-covered plateau. The XJH315-ED cantilever roadheader of China Railway Construction Heavy Industry Co., Ltd. continued to rapidly excavate in the Sejila Mountain Tunnel of the plateau railway. Excavation.

The entrance to the Sejila Mountain Tunnel is above 3200m above sea level, and the entrance section of the tunnel is grade V and VI weak surrounding rock. After the construction of the project using the cantilever tunnel boring machine of China Railway Construction Heavy Industry, the over-excavation volume of the tunnel profile is accurately controlled. It takes about 3 hours to excavate 1.2m and 130m³ of ballast per cycle. Compared with the traditional excavator + breaker method, the efficiency is more than doubled. , It has little disturbance to surrounding rock, high efficiency of circular construction, and timely support. It is especially suitable for the protection of side slopes at the entrance and exit of tunnels. It is a good helper for non-blast excavation of plateau railway tunnels.

XJH315-ED cantilever roadheader shows off its style

The XJH315-ED cantilever tunnel boring machine independently developed by China Railway Construction Heavy Industry is a non-blasting excavation equipment for tunnels, which integrates excavation and ballasting. It has outstanding construction advantages under restricted blasting areas and loose and weak surrounding rock conditions, and excavation is accurate. , Efficient, economical and safe. In response to the low-temperature, low-pressure, and low-oxygen environment of the plateau railway, China Railway Construction Heavy Industry has carried out dozens of special plateau adaptability designs for the equipment. The whole machine adopts horizontal-axis cutting head design, which has high tunneling efficiency, strong rock breaking ability, good stability of the whole machine, average cutting efficiency 40m³/h, positioning cutting height 7.5m, cutting width 8.5m, positioning cutting With a cross-section of 60m², it is currently the horizontal-axis cantilever roadheader with the largest positioning and cutting range in China.

China Railway Construction Heavy Industry XJH315-ED cantilever roadheader

Starting from the practicality of construction, the whole machine is equipped with necessary supporting equipment such as water pipe reel, cable reel, transformer, etc., to facilitate the connection of the connection. It can also be equipped with a mobile power car to provide a power source for equipment transitions in the absence of power. Equipped with intelligent modules (optional), the whole machine has the functions of real-time positioning, visual tunneling navigation, cutting path planning, contour scanning, etc., so as to realize automatic tunneling operations.

The cantilever roadheader of China Railway Construction Heavy Industry has formed a series of products such as plain type, high prototype, mining type and intelligent type. It has been successfully applied to railway, highway, coal mine and other industries. It is the following full-face roadheader, drilling and blasting equipment Another excavation tool built backwards will write more legendary stories of China Railway Construction Heavy Industry. See Editor of Daowang Machinery Column/Ge Siyu