In the autumn of September, good news was passed. After the Beijing Air Transport Association’s “GB/T9001-2018 (ISO9001:2008)” quality mana...
The tunnel lining formwork is a special equipment that must be used in the secondary lining of the tunnel construction process, and is used...
The personnel who need to operate the tunnel lining trolley need some specific understanding. Now many operators do not have this understan...
Before the tunnel lining formwork is installed, it is necessary to level enough space at the hole. To lay the track, the track is best to f...
The second lining construction of the tunnel is also the secondary lining support method of the tunnel. The white point is t...
Tunnel lining and initial support refer to the inner lining constructed with concrete and other materials under the condition that the tunn...