Abstract:
Rock grouting is a multidisciplinary engineering science. The last decade research has deepened the understanding of geohydrology, rock mass response, material science, rheology and theories of grout spread in rock fractures. Grouting has moved from handycraft to engineering-a paradigm in the approach of designing and execution. Design of the basic geotechnical structure is a defined objective of consultants work. The design work has, however, changed from preliminary based on application of prescriptive measures to calculations. Design of the grouting work can also today be verified by calculations and is not any longer in the hands of the contractors. Application of an observational approach is in most cases mandatory due to the uncertainties involved. All these have implied that the role and responsibilities of the consultants, contractors and engineers have changed. Quality control of execution and fair payment of the contractor is other important issues.