The second lining construction (including the widening section) should adopt the whole hydraulic automatic walking lining trolley, the lining trolley should have accurate structure size, all kinds of telescopic components, hydraulic system, electrical control system running well, reasonable setting of supporting mechanisms; It should meet the requirements of automatic walking and have a locking device to ensure accurate positioning.
Steel formwork is a steel formwork used for concrete pouring and forming. In addition to steel formwork, there are also wooden formwork, plywood formwork, etc. Steel formwork is widely used in construction projects due to its multiple uses and beautiful appearance during concrete pouring.
Knowledge of road and bridge engineering: For the trackless transportation of slag in long tunnels, it is advisable to equip high-power, high-capacity, and advanced loading and unloading machinery and equipment to accelerate the construction progress.
(1) Mechanical equipment should be selected and equipped in accordance with the principle of "advanced performance, reasonable matching, and emphasis on work efficiency", and in accordance with the technical requirements for mechanized construction of large cross-section (long) tunnels.