Combined steel sheet pile wall system

In this kind of wall, the tubes provide a high degree of strength and stiffness. Installed between them are intermediate sheet piles, consisting of one or more U-shaped or Z-shaped sections. The tubular piles are installed first, then fitted with connectors for installation of the sheet piles. The use of a guiding frame is stipulated because of the high requirements that are set for the dimensional stability of the primary elements.

The main function of the sheet piles is to transmit earth and water pressures to the tubes. Thanks to the arching effect, the grain stress is absorbed almost entirely by the tubes. Consequently, the strength and stiffness of the whole structure are determined primarily by the choice of tubular pile. The great advantage of this type of wall is its high strength and stiffness: it is about four times more stiff than the heaviest traditional sheet-pile wall.

Tubular piles up to 3.4 metres in diameter can be used, tilted at various angles. Depending upon the design, inclinations of up to 5:1 are possible. We are able to install combined walls both on land and from the water. Moreover, sheet-pile sections of various types and lengths can be incorporated, either by a traditional crawler crane or a guided leader system. The piles can be driven or vibrated into position. And, depending on the soil conditions, the sheet piles are installed to the required depth by means of water injection, fluidization, pre-augering or pre-digging.

This article comes from BAM-ST edit released