Foundation construction techniques

Steel sheet piling

Sheet-piling constructions are used for many structural applications. These can include quay walls, bank or shore protection and walls for construction pits and pressure pits. We install complete construction site foundation pits, including anchoring or struts and pile-driving if necessary. We work in inner-city areas, rural areas, on large-scale and smaller-scale projects and in confined spaces or in places where access is difficult. Our expertise centres on sheet piling, but this has made us true all-rounders in that field.

Vibratory sheet piling: minimum vibrations

When it comes to installing sheet piling through vibration,we exclusively employs high-frequency vibratory hammers with variable moment technology. This low-vibration method is fast-working and in many cases can be easily implemented in a built-up or inner-city location. If necessary we can combine this with the techniques of water jetting or pre-auguring to further reduce soil resistance or the problem of vibration nuisance in the surrounding area.

Pressing sheet piles: vibration-free

Pressing steel sheet piling into the ground also enables us to install it entirely without any vibration. To achieve this, we employ cranes with fixed leaders. The largest one can, depending on the circumstances, press piles up to 25 m. We also have a specially built sheet pile extractor which allows us to extract double pile planks.

Pile-driving, vibratory or vibratory-free installation of tubular piles

With our wide selection of vibratory and pile-driving equipment we are able to install tube piles with a wide range of diameters and lengths. As of late we can also install tubular piles with a vibration-free technique. We have considerable experience in the installation of fender walls from the water.

Installation of combination walls

Tube piles and sheet piles can be combined into combination walls. The tubular piles provide increased strength and rigidity when compared with a situation in which only sheet piling is used. Such walls are often used as quays or wharves in a harbor. Installing sheet piles without vibrations (by means of static pressure) is something we’ve been doing for a while. More recently we’ve also started to install steel tubular piles vibration-free.

Driving Concrete piles

Where concrete piles are concerned, we have truly earned the title of specialist in the heavy hoisting sector. Piles with large diameters (up to 600mm) and extensive lengths (30 metres) present no problems for us. Even when the work has to be carried out from the water.

Pile extraction

We specialise in removing old foundations, for example involving the removal of wooden or concrete piles and sheet-piling along banks. We have a wide range of pile extractors which allow us to extract piles of any diameter. If we don’t have the right pile extractor, we will construct one! An example of this is the Kaiserschleuse project in Bremerhaven, where we extracted no fewer than 6,000 piles from the ground.

Anchoring

We offer complete construction site pits, including anchoring. In a number of projects we have also driven in steel anchor piles to lengths of up to 65 metres.

Diverse and modern machinery

We use a wide range of crawler cranes en hydraulic cranes. Our hydraulic cranes, which are capable of driving in pile plank lengths of up to 20 metres, enable us to construct a pit in no time while causing the minimum of nuisance to the surrounding area. Construction and removal can be completed within 30 minutes. Our wide range of crawler cranes equipped for larger-scale, heavier works, means that we are a jack of all trades.

This article comes from sterk edit released