VSF has made combi walls for various clients. Combi walls are retaining walls made out of a combination of tubular piles and sheet piles. With the piles providing strength and the sheet piling serving as soil-retaining structure. Combi walls are used when sheet piling is no longer sufficient or economical. The tubular piles can have diameters up to 1820 mm and lengths of up to 40 metres. The sheet piling is usually shorter than the piles, with the piletin level often not much deepr than 2 metres beyond excavation depth. For correct positioning, a piling frame is used and two surveyors are used to guide the pile from 2 directions. Where possible and allowed, the piles are vibrated to the desired depth, otherwise they are driven at a later stage with a hydraulic or diesel hammer to provided for the necessary bearing capacity.
The combi walls can be installed both on land and on water.
Name of project |
Client |
Gouda, 2nd Juliana lock |
Van Hattum en Blankevoort |
Pernis, Mooring facility quay 8 NOVA Terminals |
Port of Rotterdam |
Ens, Bascule basement Ramspolbridge |
Infrateam N50 |
Rotterdam Maasvlakte, Quay wall EMO |
Van Hattum en Blankevoort |
Rotterdam Maasvlakte, Quay wall Maasvlakte 2 |
Comb. Van Hattum en Blankevoort / BAM Civiel |
Rotterdam Maasvlakte, Construction pit Electrabel powerplant |
Visser & Smit Bouw |
Utrecht, Abutments motorway A2 |
Van Hattum en Blankevoort |
Utrecht, Abutments motorway A2 |
Construction consortium A2 Hooggelegen |
Utrecht, Overpass widening motorway A2 |
Combinatie A2 |