Tunnel Construction Mining Cut and Cover Method

The Tunnel Trolley For Moulds is also called the external mould trolley.Open Cut Tunnel Trolley is mainly suitable for the construction of the concrete external mould of the tunnel and is used in conjunction with the inner mould Double Trolley Liner trolley.
Including formwork system, structural system, electrical system, hydraulic and walking system, the difference from the inner mold Lining Formwork Trolley is that the structure is located outside, and the formwork is located inside the structure. The main feature is that the trolley needs to meet the construction requirements in terms of positioning and overall strength.

The inner and outer lining of the arch wall of the Open Cut Tunnel Trolley adopts a full-section integral hydraulic automatic traveling steel mold trolley. There is no sleeper under the rails of the trolley, and the rails are placed directly on the filling surface. The lining trolley is designed and manufactured to increase by 5 cm according to the design size of the lining section of the open tunnel.
The steel structure and steel Tunnel Trolley For Moulds used have sufficient strength, rigidity and stability, and the template trolley panel. Using national standard steel, the outer formwork panel is 8 mm steel plate, and the inner formwork panel is 12 mm steel plate. The masts of the inner and outer mold trolleys are all set up according to 6th, that is, the horizontal distance between the masts is 2.1 meters. The length of the formwork trolley is 10.5m, and the working windows on the sidewall of the formwork trolley are arranged in layers with different heights. It should be larger than 1.5m, with 7 working windows on each floor, with a clearance of 50cmx 50cm.
The door frame and each support are firm, the template joints are tight, no slurry leakage, and the template surface is smooth. The template is made on-site with a 5cm wooden mold. In order to prevent the outer form trolley from floating up or sliding outwards during concrete pouring, the inner and outer form trolley. A total of 5 rows of round steel rods not less than ψ25 are arranged at the lower part, at the waist and at the top of the dome.
Both ends are processed into threaded fasteners, the length of the threaded fasteners is not less than 15 cm, and the tie rod must be set on the panel
On the strong plate rib, the horizontal spacing of tie rods is 1.5 meters. After the trolley is fixed, place ψ on the rod position. For 40PVC casing, a tie rod is installed in the casing, and both ends of the tie rod are tightened with steel gaskets and nuts.

product feature:

* It is widely be used in all kinds of tunnel concrete construction
* The product is easy to use and flexible to disassemble.
* More times turnover, low cost amortization.
* The appearance of concrete is well quality.
* Save labor cost and reduce project cost.

Advantage:

● light weight; 
● simple, strong and stable structure; 
● moved, mounted and stripped easily; 
● strong reusability; 
● small deformation under force; 
● adequate space under traveler and providing a big space for bars and formwork construction operation.

Lijian Formwork is a professional manufacturing enterprise specializing in construction formwork, steel structure and mechanical equipment. It can provide construction enterprises with a series of high-quality services such as formwork and steel structure engineering technical consultation, scheme design, processing and production, sales, leasing and on-site technical guidance and installation.
The company is affiliated to Beijing Lijian Engineering Technology Co., Ltd., Shandong Lijian Formwork Co., Ltd., and Anshan Lijian Engineering Co., Ltd. The company's processing bases are located in Tai'an City, Shandong Province and Anshan City, Liaoning Province. Relying on advanced technology and strong processing strength, the company's business has developed rapidly. Since its establishment, the company has participated in hundreds of major domestic projects. The company's product system is widely used in infrastructure construction fields such as high-speed railways, subways, water conservancy, expressways, underground pipe corridors, and municipal engineering. It has the characteristics of reasonable structure, convenient operation, reliable quality and high cost performance. It has established a good cooperative relationship with China Railway, China Railway Construction, China State Construction, China Hydropower, China Communications Construction, China Power Construction and other construction companies.

The company's business has expanded to 15 provinces, cities and autonomous regions across the country, and exported to the United States, the United Arab Emirates, Cambodia and other countries. At the beginning of its establishment, the company took quality and technology as the foundation of the company, and took the lead in obtaining quality certification and applying for a number of national patents. Product quality stability and technological advancement are at the forefront of the industry.
The company takes "credibility first, users first" as its corporate purpose, "quality for survival, innovation for development" as its business philosophy, and wins the trust of construction units with innovative technology and high-quality services to create good economic and social benefits for them.

Value-added services:
Provide construction plan for civil engineering and cooperate with Bidding for Party A.
Provide early product design and the most cost-effective scheme.
After sales service and technical support during construction.
Free product improvement scheme.