The world's first hard rock mud water balance shield machine "China Railway 1268" is offline.

CTOnews.com, January 17, according to the website of the State-owned assets Supervision and Administration Commission, the world's first hard rock mud-water balance shield machine, "China Railway 1268", developed by China Railway Industry China Railway equipment under China Railway Corporation, was successfully put off the production line in Nanchang on January 11.

▲ the world's first hard rock mud water balance shield jacking machine is unveiled offline | Source: SASAC website this equipment adopts the design concept of "pipe jacking + shield", which can meet the special requirements of trenchless, small diameter, long distance, curve jacking and other special requirements in urban underground pipe network construction, and is of great significance to promote the mechanized construction of urban underground pipe network.

CTOnews.com learned that "China Railway 1268" excavation diameter of 3.68m, will be used in Changsha Leifeng waterworks raw water pipeline project Taohualing tunnel construction.

According to reports, the successful offline of the "China Railway 1268" top shield machine has realized the collaborative innovation of equipment and construction method, and provided a new solution for the development of underground space. This method can also be widely used in urban drainage, electric power, gas and other underground pipe network projects, and will better serve the construction of sponge cities and urban renovation in China.