A combined wall is a combined system which consists of a king pile and an intermediate sheet pile. The possibility to use different combinations in combined walls allows them to take loads that cannot be taken by conventional sheet piles. Due to the arching effect the king piles bear all the loads and intermediate sheet piles have only an earth-retaining and load-transfer function and they may be shorter than the king piles.
The tubular combined wall is a system composed of steel pipes, as primary elements, and double Z sections or U sections as intermediate piles.
The Projects organization produces combined piles by making the tubes at the right length and providing them with interlocks. All necessary welding can be done by our team. Obtaining an elastic section modulus of more than 40,000 cm³/m is not a problem.
The HZM wall is a system incorporating HZM king piles as structural support and double AZ sheet piles as intermediate elements.
The intermediate sheet piles have only an earth-retaining and load-transfer function and therefore may be shorter than the HZM primary piles.