The right strategy choice for groundwater control can significantly reduce cost.
Tunneling Without Water Problems gives you field-tested pre-excavation grouting (PEG) methods to control groundwater — even under high pressure, high volume, or strict environmental limits.
Field-tested PEG methods
Proven pre-excavation grouting techniques to limit costly water ingress, balanced to your project's requirements.
Engineer-focused strategy
Clear, practical guidance that bridges targeted results and the mitigation measures required to reach them.
Global case studies
Lessons and documented project data from Scandinavian and international hard rock tunnel projects.
Groundwater can determine the success or failure of a tunneling project. Based on decades of international experience, this guide connects theoretical concepts with real-world project documentation — explaining why proven strategies work, and how to achieve results even in challenging geological conditions.
Whether you're dealing with high-volume, high-pressure water inflow or strict environmental limits on water ingress, this handbook details how to meet specified requirements on your next project.
Knut F. Garshol
Over 50 years of direct experience planning and handling groundwater problems in mining, subsea, and urban tunneling and shaft sinking — starting with Norway's 1970s hydropower tunneling boom, grouting dam foundations, lake taps, and high-pressure concrete plugs. Author and co-author of books and papers on sprayed concrete and grouting, with conference and course presentations worldwide. Has worked as contractor, owner, designer, consultant, and dispute resolver.