Berekening van bekledingen van in klei gegraven tunnels door de methode van Wianecki.

Wianecki has proposed a method allowing to calculate tunnel walls. This method was adapted by the authors to the case of a tunnel in a clay layer. The adaption, which has required the modification of a number of calculations, is described in the paper. An example of calculation for a tunnel built under the river Scheldt by the Petrochim concern is incorporated in the paper.