STABILITY PROBLEMS IN A DEEP EXCAVATION IN CLAY
This paper describes the excavation procedure and some stability problems encountered in connection with a 10-m deep braced excavation in medium soft clay. Very large deformations in the first excavated sections made it clear that the factor of safety with respect to bottom heave failure was very close to unity, and hence, much lower than the value of 1.5 calculated from a conventional total stress analysis based on vane strength. Thus, the experiences from this excavation yield an excellent opportunity to test new and better methods of stability analysis which have been developed during the last 10 years. Furthermore, recorded values of horizontal displacements and strut loads contribute to improve our knowledge about earth pressure against flexible structures and behaviour of braced deep excavations in clay.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00781193
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Corporate Authors:
Norwegian Geotechnical Institute
P.O. Box 40 Tasen
Oslo 8, Norway -
Authors:
- AAS, G
- Publication Date: 1985
Media Info
- Features: Figures; References; Tables;
- Pagination: 9 p.
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Serial:
- Norwegian Geotechnical Institute Publication
- Issue Number: 156
- Publisher: Norwegian Geotechnical Institute
- ISSN: 0078-1193
Subject/Index Terms
- TRT Terms: Deformation; Earth pressure; Excavations; Failure; Soft clays; Soil structure interaction; Stability (Mechanics); Stability analysis; Structural analysis; Structural mechanics
- Uncontrolled Terms: Structural behavior
- Subject Areas: Bridges and other structures; Geotechnology; Highways;
Filing Info
- Accession Number: 00450009
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 27 2004 9:55PM