The themes of the Brussels Symposium, in line with the terms of reference of the TC 211 are: - recent R&D activities and advances with regard to ground improvement methods - the influence of the equipment used for ground improvement works, f.i. vibroprobes, HEIC,... - the available control methods during the execution of ground improvement works - the monitoring of improved ground - the execution of ground improvement in particular soils, f.i. crushable sands, glauconitic sands, organic soils, hydraulically deposited mud (dredged or industrial) DOC_AB_NL:The themes of the Brussels Symposium, in line with the terms of reference of the TC 211 are: