FOUNDATION STUDIES IN GROUND WITH SUBTERRANEAN CAVITIES - PLACE OF GRAVIMETRIC METHODS
ETUDES DE FONDATION EN TERRAIN CAVERNEUX - PLACE DE LA GRAVIMETRIE
The role of geophysical investigations in foundation studies in ground containing cavities is examined, distinguishing between extensive cavities and small numerous holes. Microgravimetry is shown to be the only method able to directly detect the amount of tons of missing soil. Investigation by means of mechanical boreholes is not always easily interpreted, hence the usefulness of continuous recording of the drilling rate and reflected percussion. Various site investigation and foundation repair programmes are described. /TRRL/
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Corporate Authors:
Laboratoire Central des Ponts et Chausees (LCPC)
Boulevard Lefebvre 58
Paris Cedex 15, France F-75732 -
Authors:
- Lakshmanan, J
- Bichara, M
- Erling, J C
- Publication Date: 1977-11-12
Language
- French
Media Info
- Features: Figures; References;
- Pagination: p. 74-9
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Serial:
- Bulletin de Liaison des Lab des Ponts et Chaussees
- Issue Number: 92
- Publisher: Laboratoire Central des Ponts et Chausees (LCPC)
Subject/Index Terms
- TRT Terms: Boreholes; Drilling; Foundations; Geophysical prospecting; Gravitation; Gravity; Holes; Measurement; Mechanical shock; Methodology; Percolation; Pore water pressures; Speed; Terrain; Underground structures
- Uncontrolled Terms: Cavities; Site investigation; Subterranean
- Old TRIS Terms: Geophysical explorations; Gravitational methods; Percolating water pressure; Underground
- ITRD Terms: 5738: Cavity; 3871: Drilling; 3377: Foundation; 5419: Gravity; 6136: Measurement; 9102: Method; 5471: Shock; 5722: Site investigation; 5408: Speed; 4372: Subterranean; 4035: Terrain
- Subject Areas: Bridges and other structures; Geotechnology; Highways; I41: General Soil Surveys;
Filing Info
- Accession Number: 00195674
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Aug 15 1979 12:00AM