Berto van der Vis, owner of eponymous earth-moving company BC van der Vis, is in charge of Section North of the Juliana Canal. This work section poses an extra challenge given the enormous amount of contaminated silt. Berto: "It is constantly puzzling with the planning and equipment needed." Since mid-August last year, more than a hundred machines have been working daily on the [...]
Pile tip overestimated, shaft friction underestimated A pile system obtains its load-bearing capacity from a combination of the point force and the shaft friction. Current Dutch standards and guidelines historically rely too much on the point force. The shaft friction, on the other hand, is often significantly underestimated and, moreover, it is considerably disadvantaged by limiting the cone resistance. Unjustifiably, [...]
The power of simplicity In picturesque Steyl on the Meuse River, a world first is being built. To protect the Limburg monastic village and hinterland from high water in the future, Dijkzone Alliantie is realizing a unique self-closing Vlotterkering® commissioned by Waterschap Limburg. A barrier that is unique in the world on this scale, but according to its [...]
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