SLOPE STABILIZATION ON CHALKOUTSI – DILESI ROAD, AT PIGADAKIA LOCATION, ATTICA PREFECTURE

PDF
Published: Jan 1, 2010
DOI: https://doi.org/10.12681/bgsg.11305
Keywords:
landslides conglomerates
N. D. Mourtzas
K. Symeonidis
N. Passas
Geologist PhD, Public Works Administration of the Prefecture of Attica
E. Alkalais
E. Kolaiti
Abstract
A series of ongoing landslides occurred at the steep coastal slopes at Pigadakia location, on the road connecting Chalkoutsi and Dilesi towns, at NE Attica. These landslides caused severe disruption on local traffic. Engineering geological study revealed the local geological conditions and the complex mechanism of the landslides. Site is located on the Neogene deposits composed mainly by layers of sandy or silty clays, marly clays with thin layers of conglomerates. Multiple landslides occurred on the steep costal slopes at a length of 280m parallel to the coast line. On the upper slopes which are composed by loose clayey materials typical circular failures occurred while on the lower ones, composed by hard clays and marls, discontinuities delineate failures under the weathering influence of sea waves. Six boreholes were drilled with piezometers and inclinometers installed in order to investigate the progress of the failures. The stabilization of the upper slopes included the use of soil nails covered with geocells. The lower slopes stabilization included the protection from sea wave erosion by covering slopes with a rock fill embankment.
Article Details
  • Section
  • Engineering Geology and Geotechnical Engineering
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Downloads
Download data is not yet available.
References
Crozier, M.J., 1986. Landslides – Causes, consequences and environment, Croom Helm, London, 252 p.
Μettos, A., 1992. Geological and Palaeogeographic study of the neogene and quaternary continental formation
of NE Attiki and SE Boeotia. PhD Thesis Dept. of Geology Unv. of Athens.
Koumantakis,I., 1971. Chalkoutsi Pontian formations, S. Attica. Ann. Geol. Pays Hellen., 27, 274-284.
Popescu, M.E., 1994. A suggested method for reporting landslide causes, Bulletin of the International
Association of Engineering Geology, Paris, 50, 71-74.
The rate of softening in stiff fissured clays, with special reference to London Clay. Proc. 2nd Int. Conf.
Soil Mech. Rotterdam, 2, pp. 50-53.
Skempton, A.W., 1948. The rate of softening in stiff fissured clays, with special reference to London
Clay. Proc. 2nd Int. Conf. Soil Mech. Rotterdam, 2, pp. 50-53.
Skempton, A.W., 1964. Long term stability of clay slopes. Geotechnique 14, No. 2, pp. 77-101.
Skempton, A.W., & Petley, D.J., 1967. The strength along structural discontinuities in stiff clays. Proc.
Geotech. Conf. Oslo 2, pp. 29-46.
Skempton, A.W., 1977. Slope stability of cuttings in Brown London Clay. Special Lectures Section, Proc.
of the 9th Int. Conf. on Soil Mech. and Found. Eng., Tokyo, Vol. 3, pp. 261-270.
Terzaghi, K., Peck, R.B., Gholamreza, M., 1996, Soil mechanics in engineering practice, John Wiley &
Sons Inc.
Most read articles by the same author(s)