Remediation of the Pissouri Landslide in Cyprus

  

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Argyris Alexandris, Irini Griva, Maria Abarioti

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Abstract


During the winter of 2001-2002, a landslide of 80.000 m3 was activated and moved downslope at the Northeast outskirts of the Pissouri village in Cyprus (Limassol prefecture), displacing a section of a country road that was crossing the upper part of the sliding mass and destroying three newly built residences. This paper presents the geologic and hydrogeologic regime of the landslide and its implication on the landslide’s mobilization. Geotechnical site investigation and post failure monitoring, in conjunction with slope stability back analysis formed the basis for the study of the slide and subsequently guided the remediation strategy. Various possible interventions to stabilize the slope and allow the safe reconstruction of the displaced road have been investigated and compared considering both economic and environmental criteria. The performance of the remediation measures has been studied in terms of stability safety, using numerical models previously calibrated via back analyses. Observations made during the execution of the stabilization works provided additional data verifying and supplementing the original design.

Keywords


Landslide remediation; hydrogeologic regime; Nicosia formation; weathered marl



DOI: http://dx.doi.org/10.4417/IJGCH-04-01-02

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