TY - GEN
T1 - A new approach for compensation grouting in highly permeable gravel
AU - Sailer, M.
AU - Fillibeck, J.
AU - Geuder, S.
N1 - Publisher Copyright:
© 2021 ISSMGE, London, UK
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85117363863&partnerID=8YFLogxK
U2 - 10.1201/9780429321559-84
DO - 10.1201/9780429321559-84
M3 - Conference contribution
AN - SCOPUS:85117363863
T3 - Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
SP - 640
EP - 646
BT - Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
A2 - Elshafie, Mohammed Z.E.B.
A2 - Viggiani, Giulia M.B.
A2 - Mair, Robert J.
PB - CRC Press/Balkema
T2 - 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
Y2 - 27 June 2022 through 29 June 2022
ER -