LANDSLIDE PHENOMENA IN KANALIA VILLAGE, FTHIOTIDA PR. AND HANDLING THEIR IMPACTS IN THE RESIDENTIAL DEVELOPMENT OF THE AREA


Δ. Ρόζος
E. Αποστολίδης
Abstract

In the present paper, the serious landslide phenomena that make difficult the residential development of Kanalia village are studied. Kanalia village is located on a slope of the eastern bank of Roustianitis torrent, the main hydrographie axis of the broader area, which is one of the main branches of Sperchios River. The geological structure of the area (sandstones and siltstones of the Pindos zone flysch) as well as the hydro meteorological and climatological conditions favoring the formation of locally very thick weathering mantle and also the development of seasonal aquifers, were at first studied. As it was confirmed, the main causes of landslide phenomena manifestation are related to the above conditions, to the erosional activity of water in the slopes of the hydrographie axes and finally to the human interventions.

These phenomena are observed in five (5) main sites with most important the one affected the South - Southwest part of the village covering the area from KanaliaGardiki provincial road until Roustianitis torrent downwards. In that case, the periodic re-activations of the sliding phenomena during the last forty years have caused full destruction and abandonment of this part of the village, since no relevant measures have been taken so far. The remaining sites are restricted in some parts of the village road network, without affecting residential zones.

For the protection and development of the residential area of Kanalia village, the following measures were recommended for the improvement of the ground conditions in the slope affected areas: (a) drainage both of the surficial and ground waters in the vulnerable zones, (b) slope supporting works with gabion walls (flexible structures), (c) protection of the stream slopes from erosion and undermining with gabion walls and gully dams, (d) tree plantations, and (e) suitable and appropriate foundation of the new constructions on the stable basement or foundation using specific types, if necessary. It is suggested the application of these measures for the safety of the road network, the good operation of which constitutes a prerequisite for a safe residential development.

Article Details
  • Section
  • Engineering Geology, Hydrogeology, Urban Geology
Downloads
Download data is not yet available.
References
Aubouin, J., 1959. Contribution à Γ étude géologique de la Grèce septentrional: les confins de !' Epire et de la Thessalie. Ann. Geol. Pays Hell. 10, p. 1-525.
Aubouin, J., 1965. Geosynclines - Developments in Geotectonics,1, Elsevier, Amsterdam, pp. 350.
Anon., 1981. a: British Standard 5930: Site Investigation. London, British Standards Institution, pp. 147.
Anon., 1981. b: Rock and soil description for engineering geological mapping. Report by the Commission of Engineering Geological Mapping. Bull. Int. Assoc. Eng. Geol. 24.
Bell, F., 1981. Engineering properties of soils and rocks. Butterworth Co., Ltd., London, 149 pp.
Bulletin of the International Seismological Centre, Pipers Lane, Thatcham, Newburg, Beckshire, United Kingdom, RG19 4 NS.
Carter, M.,1983. Geotechnical Engineering Handbook. London, 226pp..
Dearman, W. R. and Matula, M., 1976. Environmental aspects of Engineering Geological Mapping. Bulletin of I.A.E.G., Vol.14, pp 141-146.
E.A.K-2000, 2000. Ελληνικός Αντισεισμικός Κανονισμός, ΥΠΕΧΩΔΕ-ΟΑΣΠ, Αθήνα, σελ. 152, καθώς επίσης πρόσφατες τροποποιήσεις αυτού.
Ε.Μ.Υ. - Δ/νση Κλιματολογίας, 1999. Κλιματικά στοιχεία των σταθμών της EM Υ (περίοδος 1955-1997), Αθήνα, σελ. 260.
ΙΓΜΕ: Αδημοσίευτες εκθέσεις Τ-212 (1963), Τ-623 (1972), Τ-806 (1980), Τ-828 (1981), Τ-1020 (1984), Τ-1076 (1984), Τ-1228 (1986), Τ-1390 (1988), Τ-1454 (1989) και Τ-2208 (2002).
ΙΓΜΕ, 1970. Γεωλογικός χάρτης κλίμακας 1:50.000, "ΦΥΛΛΟ ΚΑΡΠΕΝΗΣΙΟΝ".
ISRM, 1981. Rock Characterization Testing and Monitoring. ET. Brown, Ed., Pergamon Press, London, 211 p.
Hoek, E. and Bray J. W., 1981. Rock Slope Engineering, Inst. Min. Metall., London, 358p.
Καραππτέρης, Ν., 1974. Η κατανομή των βροχοπτώσεων εις τον Ελληνικό χώρο. Δελτίον Ε.Γ.Ε., τόμος XI, τεύχος 1, Αθήνα, σελ. 1-27.
Κατσικάτσος, Γ, 1992. Γεωλογία της Ελλάδας. Πανεπιστήμιο Πάτρας, ΟΕΔΒ, Αθήνα, 451 σελ.
Κούκης, Γ. και Ρόζος, Δ., 1982. Γεωτεχνικές συνθήκες και κατολισθητικές κινήσεις στον Ελληνικό χώρο σε σχέση με τη γεωλογική δομή και γεωτεκτονική εξέλιξη. Ορυκτός Πλούτος, 16, σελ. 53-69.
Κούκης, Γ. και Ζιούρκας, Κ., 1989. Κατολισθητικές κινήσεις στον Ελληνικό χώρο - Στατιστική θεώρηση. Ορυκτός Πλούτος, 58, σελ. 39-58.
Πατταζάχος, Β. και Πατταζάχου, Κ., 2003. Οι σεισμοί της Ελλάδας, θεσσαλονίκη, 286 σελ.
Papazachos, B.C., Comninakis P.E. et al., 2000. A catalogue of earthquakes in Greece and surrounding area for the period 550BC -1999. Pubi. Geoph. Lab., Univ. of Thessaloniki, 1, 333pp.
Report of the Commission of Eng. Geological mapping of the IAEG, Part I: Rock and Soil materials, 1979.
Classification of rocks and soils for engineering geological mapping. Bulletin of IAEG, No19, Krefeld, pp 364-371.
Report of the Commission of Eng. Geological mapping of the IAEG, Part I: Rock and Soil materials, 1981b.
Rock and Soil description for engineering geological mapping. Bulletin of IAEG, Krefeld, No24.
UNESCO/IAEG, 1976. Engineering geological maps. A guide to their preparation. The Unesco Press, Paris, 79p
Most read articles by the same author(s)