The book deals with almost all aspects of annular gap lubrication in pipe jacking - from ground conditions, through the properties of bentonite to the technical aspects. There is also a collection of calculations and suggested values for bentonite consumption quantities.
About the author
Steffen Praetorius is a graduate geologist and deputy manager of research and development in the Utility Tunnelling department of Herrenknecht AG. In addition to research projects and geotechnical considerations, his duties also include technical and user-specific questions about the use of bentonite in tunnelling.
Dr. Britta Schößer is a researcher and lecturer at the Ruhr University, Bochum at the Chair of Tunnelling and Construction Management. The investigation of bentonite suspensions for construction use in utility construction and tunnelling belong to her specialist areas.