STABILITY OF A DEEP EXCAVATION IN DIAGENETICALLY CONSOLIDATED MUDSTONE
STANDISCHERHEIT EINER TIEFEN BAUGRUBE IM DIAGENETISCH VERFESTIGTEN TONGESTEIN
During the construction of the 5.5 km long Hasenberg tunnel for the S-bahn Stuttgart an approximately 25 M deep, 220 M long and 20-30 M wide open pit was excavated in the diagenetically consolidated mudstone of the lias alpha and knollenmergel formation. The horizontal displacements of the side walls of up to 65 mm and the heaving of the invert of 45 mm measured during construction were not expected though extensive explorations were carried out before construction started. Parallel to the excavation extensive finite element analyses were carried out to interpret these displacements. It could be concluded, that the observations can only be explained by the presence of horizontal in situ stresses of 1-2 mn/M squared, which are in accordance with the history of origin of the rock. The number of the covering abstract of the congress is TRIS no. 385148. (Author/TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9061912377
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Supplemental Notes:
- This paper was presented at the Fifth International Congress on Rock Mechanics, Melbourne, Australia, 1983, Volume 2, Theme C.
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Corporate Authors:
AA Balkema
P.O. Box 1675
Rotterdam, Netherlands BR-3000Australasian Institute of Mining and Metallurgy
204 Lygon Street
Carlton, Victoria Australia 3053 -
Authors:
- GRUETER, R
- Wittke, W
- Publication Date: 1983
Language
- Dutch
Media Info
- Features: Figures; Photos; References;
- Pagination: p. 269-280
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Serial:
- Publication of: Balkema (AA)
- Publisher: AA Balkema
Subject/Index Terms
- TRT Terms: Conferences; Dislocation (Geology); Excavation; Excavation and tunneling; Excavations; Motion; Mudstones; Stability (Mechanics); Stresses; Tunnels
- Uncontrolled Terms: Horizontal
- Geographic Terms: Germany
- Old TRIS Terms: Consolidated deposits
- ITRD Terms: 8525: Conference; 5155: Excavation (process); 8125: Germany; 9029: Horizontal; 5483: Movement; 5930: Stability; 5575: Stress (in material); 3374: Tunnel
- Subject Areas: Bridges and other structures; Geotechnology; Highways; I43: Rock Mechanics;
Filing Info
- Accession Number: 00385196
- Record Type: Publication
- Source Agency: ARRB
- ISBN: 90 6191 237 7
- Report/Paper Numbers: BOOK
- Files: ITRD, TRIS, ATRI
- Created Date: Jun 28 1984 12:00AM