By E W Raabe and K Esters. This paper was first published in GE’s May 1990 edition.
By using soil fracturing injection techniques, settlement-sensitive soft or loose soils can be fractured and locally confined in a controlled manner. In this way they are strengthened and homogenised by a supporting skeleton of solid material lamellae. By closely monitored extended injection, enforced heave of 200mm and more is achievable in order to equalise non-uniform deformations or to adjust excessive settlements of structures.