Recently, China's first ultra-narrow body cantilever tunnel boring machine XTR4/180 was successfully launched in Xugong Foundation Engineering Machinery Company. This machine is a new product with independent intellectual property rights developed by Xugong Foundation combined with international advanced technology. It is mainly tailored for small tunnel construction and can also be used for underground pipe gallery construction. The successful launch of the aircraft improved the layout of Xugong in the large, medium and small cross-section tunnel market, and further consolidated the industry leading position of Xugong cantilever tunnel boring machine.
The machine is equipped with high modular design and the width of the fuselage is only 1.7 meters, which is the highest in the world. Its main technical features are as follows: It adopts a new cutting mechanism and small-diameter cutting head, which has strong rock breaking ability; it adopts spray and airborne fan to double dust, effectively improve dust removal effect and reduce dust pollution; the shipping mechanism adopts anti-card chain design, which is effective Avoid the phenomenon of card chain and jump chain; adopt air-cooling heat dissipation, good heat dissipation effect, the main machine can work normally without external water source; the main hydraulic components are imported brands, strengthen equipment stability; have intelligent electronic control and protection function To ensure construction safety and efficiency. Prior to this, domestic small tunnels were mainly constructed by blasting, and the size of the over-excavation was serious and the safety hazard was large. The XTR4/180 cantilever tunnel boring machine can solve the problems of traditional blasting construction danger, large disturbance of surrounding rock, uncontrolled size and poor price of shield machine. At present, the first set of equipment has been sold, helping the water and electricity tenth of the Pi River water diversion project.
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