This tunnel steel formwork is specially developed for tunnel lining and invert construction, two core procedures in tunnel engineering projects. Tunnel lining and invert are key to ensuring tunnel structural stability and waterproof performance, so the formwork used here needs to meet strict requirements for rigidity, precision and adaptability. This product is fully tailored to these on-site construction needs, and it works well in various tunnel projects like highway, railway and subway tunnels.
Made of high-quality thick steel plates, the formwork has excellent structural rigidity and load-bearing capacity. During concrete pouring for tunnel lining and invert, it can withstand huge lateral and vertical pressure without deformation, which ensures the flatness and compactness of the concrete surface. Its arc-shaped design fits perfectly with the tunnel’s circular or horseshoe-shaped cross-section, realizing seamless fitting with the tunnel contour and avoiding gaps that may cause slurry leakage during construction.
The formwork adopts a combined structure, which is easy to assemble and disassemble on narrow tunnel construction sites. Workers can splice the modules according to the actual tunnel size, and the connection parts are firm and reliable, which keeps the whole formwork stable during construction. For tunnel invert construction, it can adapt to the flat and sloped invert structures, ensuring the concrete pouring quality and the overall stress performance of the tunnel bottom.
It is reusable after simple cleaning and maintenance, which reduces the material cost of tunnel engineering in the long run. The surface of the steel formwork is smooth, so the poured concrete lining and invert need little post-processing, saving labor time for construction teams. In practical tunnel construction, it can adapt to different geological conditions and tunnel specifications, providing stable support for concrete forming in lining and invert works.
Overall, this tunnel steel formwork is a practical and reliable tool for tunnel lining and invert construction. It meets the basic and critical needs of tunnel engineering construction, ensures construction quality and efficiency, and is widely applicable to various underground tunnel construction projects.