Recently, the second lining trolley produced by Tengyu Machinery has been installed and accepted at the entrance of Lijiacun Tunnel in the Chongqing Kunming project of China Railway 12th Bureau. Becoming an iconic construction project again.

The installation of the second lining trolley has achieved rapid mold insertion, changing the drawbacks of the original shuttle groove construction and ensuring that the feed at each port is pumped. During construction, the project department meticulously organizes and scientifically manages, adhering to the construction principles of "safety first, quality first" and "high standards and strict requirements". The "three inspection system" and "hidden engineering site supervision system" are strictly implemented for processes such as geotextile, concrete anti void devices, waterproof board installation, steel bar binding, pre embedded channels, and trolley positioning. At the same time, prior to concrete pouring, professional technical personnel provided detailed technical briefings to on-site construction personnel. The construction unit, supervision unit, and others conducted on-site acceptance of the first piece of the pre embedded channel of the tunnel contact network, ensuring the orderly construction.

Tengyu has a modern enterprise management and after-sales service system, as well as a complete set of mechanical processing equipment. It has complete capabilities in the development and manufacturing of bridge and tunnel construction machinery and specialized equipment. We have successively launched steel formwork tunnel lining trolley series, trestle series, bridge steel formwork series, and hydraulic machinery and component series products.