detailed introduction
Invert trestle is a key component in tunnel engineering, located at the top of the tunnel, its main functions include supporting the top of the tunnel to enhance the stability of the tunnel, distributing the surface load to reduce the surface settlement, preventing the tunnel deformation caused by ground deformation during earthquakes, and supporting the normal operation of public transportation vehicles such as subways and highways.
From the perspective of structure, the invert trestle includes the main bridge, the front slope bridge, the back slope bridge, the slope plate, the front leg, the back leg, and the lifting mechanism on both sides of the main bridge, the hydraulic press control organization and its raising organization. It is designed not only with stability and safety in mind, but also adaptability and flexibility to address the challenges of the tunnel's extreme natural environmental conditions.
The application of invert trestles is not limited to tunnel engineering. In ports, shipyards and other places, it can be used to load and unload cargo, especially heavy items such as ships. In urban buildings and industrial sites, invert trestles can also be used for the lifting, handling, and installation of large items, as well as for the transportation, lifting, and assembly of items.
In addition, there are self-propelled hydraulic invert trestles specially used for invert construction of railway and highway double-track tunnels. This kind of equipment provides a small line working face for invert construction, which can meet the needs of one molding and rapid construction of the invert concrete. Its high-strength design enables it to safely pass all types of construction vehicles weighing no more than 60T, while the space above it is open to facilitate the passage of all types of construction vehicles and equipment.
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