World's First Boring and Blasting Machine Test Equipment in China
TapTechNews May 22nd news, jointly developed by Tsinghua University and China Railway Science and Industry, at the high-end equipment manufacturing base of China Railway Industry in Wuhan, Hubei. The world's first boring and blasting machine test equipment has completed the tunneling tests under three working conditions: hollow cutter head tunneling, advanced pre-cracking treatment followed by hollow cutter head tunneling, and full-face cutter head tunneling, and is about to enter the stage of promotion and application.
The preliminary test results show that in the ultra-hard rock geological conditions, after advanced pre-cracking treatment, the efficiency of hollow cutter head tunneling can be increased by 30%.
At present, when TBM (TapTechNews note: Tunnel Boring Machine) is used in the construction of long tunnels in China and encounters complex geological conditions such as rock burst, fracture zone, and large deformation of soft rock, it is easy to cause equipment failures and bring about construction delays. The boring and blasting machine is expected to break the current dilemma in the construction of long tunnels.
The boring and blasting machine (Boring and Blasting Machine) is a breakthrough and original technical achievement in the field of tunnel tunneling. It effectively combines the traditional drill and blast method with modern TBM tunneling and has multiple tunneling modes, belonging to a new generation of tunneling machines that are high-end, intelligent, and green.
After the successful development of this technical achievement, it will achieve a new breakthrough in the field of tunnel tunneling, especially under the background of the country's proposed large-scale equipment renewal, which is of great significance. Sheng Bao'an, the chief engineer of China Railway Science and Industry, said that the Chinese boring and blasting machine will provide a new solution for the construction of long tunnels in the world.
The boring and blasting machine has wide application value and promotion prospects. In the future, it is expected to be applied in large-scale water conservancy and hydropower projects, mines, and construction fields such as highways and railways, creating world-leading Chinese technologies and equipment and adding a new member to the great national equipment. Qin Pengxiang, a Ph.D. from Tsinghua University, said.