Tunnel Subway Construction Full Grouted Steel Sleeve

Subway Accessory Steel Sleeve is mainly used in the construction of concrete accessory structure and small Steel Sleeve Structural component concrete.

Subway steel formwork is a specialized construction technique used in the building of subways, tunnels, and other underground structures. The process involves using pre-fabricated steel panels to create the walls and supports for the tunnel while the concrete is poured.

Here's how it typically works:

1. Design and Planning: Before any work begins, engineers design the tunnel layout and determine the size and shape of the steel formwork needed. This includes calculating the dimensions based on the tunnel's diameter, length, and depth.

2. Manufacturing of Steel Panels: The steel formwork is typically made off-site in a factory. These panels are fabricated from high-strength steel, which can withstand the pressure and weight during the construction phase. Each panel is designed to fit together with others to create a complete wall.

3. Transportation to Site: Once the steel panels are manufactured, they are transported to the construction site. Depending on the size of the project, this could be a single panel or hundreds of them.

4. Assembly: At the site, the panels are assembled in the correct sequence to form the tunnel walls. Workers will secure the panels together using various types of connectors or bolts, creating a continuous wall.

5. Concrete Pouring: After the steel formwork is assembled, concrete is poured into the space between the steel panels. The concrete fills the gap, adhering to the steel forms, and once hardened, provides the structural integrity of the tunnel.

6. Dismantling: Once the concrete has cured to a sufficient strength (usually several days), the steel formwork is removed. This allows the concrete to retain its shape without any interference.

7. Finishing: After the formwork is removed, the tunnel walls are inspected and finished as necessary. This might include adding waterproofing, painting, or installing additional features like lighting or ventilation systems.

Using steel formwork for subway construction offers several advantages over traditional methods. It is more efficient, quicker, and less labor-intensive. It also allows for greater precision and control over the tunnel's dimensions and shape. However, it requires significant investment in equipment and skilled labor.

Product feature:

* It is widely be used in concrete construction of various underground projects.
* 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.