Permanent Tunnel Formwork System

Working Principle of Tunnel Lining Trolley

The design of the commonly used tunnel lining trolley formwork system needs to understand the formwork contour line, formwork lining length, work window and grouting port layout and positioning, overlap length, etc., to consider the division of the formwork, the parting situation and the release of the formwork according to the construction requirements. Die gap.

(1) Determination of the position and type of the operation window and grouting port: Arrange the grouting port of the operation window according to the requirements (the height of the bottom row of operation windows is not more than 1500mm from the side base), and the grouting port is generally closed and the outer arc surface is Flat type.

(2) Determination of the length of the panel: According to the overall design, divide the mold and determine the position of the hinge structure, but the length of the panel should not be between 5950 and 6500mm.

(3) Design of formwork panels, webs, angles and other materials: The thickness of the panel is generally between 8mm~12mm, the key points on the webs need to be arranged with corresponding bolt holes, and the appropriate reinforcement materials should be selected between the webs.

(4) The design of the mold release gap of the template: the minimum release gap is not less than 60mm (that is, the hinge between the top mold and the side mold). Generally, the design is 110mm, and the ground gap is greater than 150mm; the space for applying the release agent needs to be considered ( Not less than 350mm). There are four design schemes for the top formwork of the variable section tunnel lining trolley formwork system.

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.