TUNNEL AND MINING EQUIPMENT
STEEL CONSTRUCTION
With over 25 years of experience, Ayyıldız Engineering provides high-quality engineering solutions in tunneling, infrastructure, and steel construction. With its modern production facilities, robust machinery, and expert staff, it produces to international standards. Its innovative approach combines reliability, durability, and engineering to build the future.
Ay-Yıldız Engineering Umbrella (Canopy) Pipes are essential pre-support elements used in tunnel excavations carried out in weak ground and high-risk zones. These pipes are installed to safely transfer the loads acting above the tunnel and to minimize the risk of structural damage to buildings located along the tunnel alignment.
Selecting the proper pipe diameter is critical, as it directly impacts both the structural performance and the economic planning of the project. Larger diameter pipes (3”, 3.5”, 4”) provide higher load-bearing capacity but require the use of specialized drilling machines for installation. Smaller diameters, on the other hand, can be placed using drilling attachments mounted on excavators, offering greater flexibility during tunneling operations.
Choosing the correct canopy pipe diameter ensures that loads and stresses in front of the tunnel face are properly managed, significantly improving excavation stability and safety. With its technical expertise and field experience, Ay-Yıldız Engineering helps determine the optimal pipe diameter for each project, enabling a safe, efficient and cost-effective application.
