Recently, in Changsha, Hunan, a 10.23-meter large-diameter rock tunnel boring machine is being assembled in the CRCC Changsha Second Industrial Park.

Liu Feixiang, secretary of the party committee and chairman of the board, said that the plateau lacks oxygen, and the construction environment and personnel environment are very harsh, and there is an urgent need for unmanned construction of the tunnel. At present, in the plateau railway, the intelligent construction equipment of CRCC is widely used, which brings great convenience to the construction of the plateau railway.

Liu Feixiang introduced that CRCC has more and more product types, more and more high-end products and more and more intelligent. We have been leading the world in tunnel equipment technology and have fully mastered the core technology.

Sun Feng, executive deputy general manager of CRCC's overseas business headquarters, said that in the first half of 2022, the value of CRCC's newly signed overseas contracts increased by 126.25% year-on-year, reaching a record high. The reason why CRCC's products are favored by the international market is that enterprises continue to innovate and enhance market competitiveness. Our shield machine products are safer and more efficient. Compared with traditional construction methods, they will provide better protection for people, and the construction efficiency will be greatly improved.Editor/Ma Xue