Building tunnel "steel and iron" | Wuxin arch installation car for tunnel construction to improve quality and efficiency!

At present, in the process of domestic tunnel construction, steel arch installation and reinforcing steel net laying are mainly carried out manually with the help of a simple platform, which involves a large number of workers, high labor intensity, high installation difficulty, low construction efficiency and high safety risks.

      Five new equipment multi-functional arch installation vehicle HLC312 integrates arch installation, reinforcement mesh laying, blasting charging and other aerial work functions into one, which can be applied to highway, railroad full section method, step method of multi-bay arch prefabricated segment, multi-bay arch prefabricated folding, single-bay arch folding operation scheme.

Multi-bay arch pre-folding

Installation construction steps

1, Prefabricated steel arches in the processing plant outside the tunnel cave, connecting the tension bars and welded mesh to ensure solid and reliable welding;

2, At the same time the welded prefabricated arches are connected by hinging, and the arches are transferred to the construction surface using a loader;

3, Multi-functional arch installation vehicle enters the cave, and surveyors measure and put points with the help of arch installation vehicle operation platform to deal with under-excavation;

4, Operate the remote control to start the middle boom of the arch installation vehicle, grab the prefabricated arch vault section and lift it to the designed installation position;

5, Remotely operate the left boom of the arch installation vehicle to unfold the left unit of the prefabricated arch to the design installation position of the sidewall;

6, The right boom of the arch installation vehicle unfolds the right unit of the prefabricated arch to the designed installation position of the sidewall;

7, fine-tuning the arch position to ensure that it reaches the designed position and connecting the bolts between the prefabricated units;

8, Install the arch frame at the arch foot position with the help of manual work and connect and fix it with the prefabricated arch unit.

9, Weld the connecting bars between the remaining part of the arches; weld the mesh and connecting bars between the first arch and the previous cycle of arches, and the erection is completed.

Construction site

Construction advantages

1, Prefabricated arch outside the tunnel cave, can significantly reduce the time of the construction personnel cave operation, significantly reduce personnel safety risks;

2, The use of five new multi-functional arch installation vehicle, only 3 people can work, compared with manual installation can save 3-4 people, reduce construction costs;

3, 45 minutes to complete the installation of three-bay arch, construction efficiency is greatly improved.

4, The car adopts automobile chassis, one equipment can take into account the construction of multiple palm faces.

      The five new multi-functional arch installation vehicles have been used in a large number of key projects such as Plateau Railway and YUKUN High Speed Railway, which are fully recognized by the construction units. Five new equipment, make tunnel construction safer, more economical and more efficient!

Add: No.18-1, Panpan Road, Quan Tang Street, Changsha Economic and Technological Development Zone, Hunan Province, China

Order hotline:

Tunnel equipment (domestic): 151-1110-3966 Shao manager

Mining equipment (domestic): 187-7400-0311 Yang Manager

Tunnel and mining equipment (foreign): 151-1110-3966 Shao Manager