Pile Foundation Improvement by Permeation Grouting

In this paper the use of permeation grouting for pile foundation improvement is discussed. To begin with, the main principles of the method are explained. After this, the set-up and results of a full scale test are outlined, discussing amongst others the effective stresses, pore water pressures and pile and soil displacements during the installation of tube-à-manchettes (TAMs) and during the actual grouting. The changes in the bearing capacity of wooden pile foundations as a result of the grouting are also discussed. Finally, the practical applicability and costs of permeation grouting for renovating a typical Amsterdam historic structure are discussed.