DESIGN AND USE OF TUNNEL LINING TROLLEY

Working Principle of Tunnel Lining Trolley

Due to the different tunnel construction methods, the trolley installation method is divided into two types: self-entry into the tunnel after installation outside the tunnel and hoisting in the tunnel. If installing in a hole, the excavation outline of the installation zone should be appropriately enlarged in advance, generally 50 ~ 80cm. According to the size of the tunnel section and the length of the trolley, 3~6 grouting anchor rods are set along the axis of the arch, with an interval of about 1/4 of the template length, and the ends of the anchor rods are bent into hooks to facilitate the fixed hand gourd. Due to the limited space in the cave, the transportation trolley components should be arranged in a reasonable order.

First assemble the main frame and connect the walking motor to install the template. After the top mold is assembled, lift it with a chain hoist, move the main frame of the trolley under the top mold, and install the top mold. The side form is standing on the side wall of the tunnel. After the top form is installed, it is hoisted and installed on the arch formwork with a chain hoist and connected with a pin. If hoisting outside the tunnel is adopted, the installation site should be selected to facilitate entry into the tunnel before hoisting, and the angle between the axis of the backstage car and the axis of the tunnel should not exceed 5 degrees after installation. For laying the track, the sleepers and rails must meet the requirements, and the gauge error after laying is controlled within 10mm; the track and the sleepers must be fixed with spikes to prevent danger when the trolley is walking; the distance between the sleepers must not be greater than 70cm to prevent the rails from being crushed .

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.