Abstract
The Oberau Tunnel is located in southern Bavaria near Garmisch-Partenkirchen. A sector of the tunnel crosses the highly permeable gravel of the Giessenbach Valley. The shotcrete driving of the two tunnel tubes is carried out in this area with only a small overburden under settlement-sensitive buildings. In order to reduce the expected settlements of several centimetres to a tolerable level, compensation grouting was carried out underneath the buildings. This paper deals with the problem of compensation grouting in coarse-grained soils and presents a concept of compensation grouting, which was successfully applied in the highly permeable gravel of the Giessenbach Valley. In addition to the findings from the compensation grouting on a test field, the uplift of a 6000 m² industrial hall is shown. The successful execution of the compensation grouting could be demonstrated on the basis of geotechnical deformation measurements in the subsurface, real-time measurements on the structure and the efficiency of the compensation grouting derived from them.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
