Seismic Refraction Data and Dangerous Phenomena’s in By-Pass Vlora Road
Luljeta Bozo, Skënder Allkja · 2013
The touristic zone of Vlora has a very beautiful nature where there is a marvelous combination of the sea, hills and mountains. This zone has different pollutions, one of them is acoustic and gazes pollution from means of transport. With intention to reduce this pollution and to secure a commodity, rapid and sure circulation of the means of transport to the touristic jonian seaside area was decided the construction of the Vlora By-pass road. The new road passes in hills and field terrain. In one part of the new road we have made a combination geological-geophysical and geotechnical study, with intention to evidence the dangerous phenomena’s as slides etc which can appear during the construction period. In this paper we would like to present this study, the behavior of the soil in this zone under static and dynamic loads from geophysics data and accomplished in site test. Also we want to present some conclusions for the manner of the sure construction of the road in these conditions. INTRODUCTION In one part of the By-pass Vlora road, the combined geological, geotechnical and seismic refraction study was made. The aim of the study was to point out the geological and litho logical construction of the zone, to evidence the weak zones and the dangerous phenomena’s in them as: re-activating of the slides determination of the approximate sliding plane or surface determination of the ruin zones from tectonic phenomena’s determination of the dynamic behaviour of the soils etc. If these dangerous zones are present in the road’s track, or near them, it doing to predict the measures to secure the road’s stability and the non-damage of the environment. .In the following we can present the results of this study and our conclusions regarding the negative phenomena’s which can appear there. Also we would like recommend some engineering measures for the stability of the natural slopes and the security of the new road. ZONE TO BE STUDIED AND THE USED METHODS The combined geological-geotechnical-seismic refraction methods was made in the zone from km12 to km 19 (fig. 1). Fig. 1 One part of the studied zone