Impact of meteorological conditions on stability of selected slopes in the Wiśnicz Foothills
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2014, Vol 46, Issue 4
Abstract
Mass wasting is one of the most important processes influencing the shaping of mountain slopes. Most programs for testing mass wasting are limited to short-time, single observations, and to surface measurements of the big phenomenon ignoring shallow landslides occur resulting in slope covers, or on its border with the rock solid. That is why, when analyzing the causes of mass wasting processes, it is extremely important to assess the influence of meteorological conditions on water circulation in the landslide slope system and the status of stresses in a soil medium that is connected with it. The aim of this work was to determine the course of changes in stability conditions for two selected slopes, connected with meteorological conditions in the period of 2009–2013 on the area of the Wiśnicz Foothills. Numerical analysis were subjected to two slopes in villages the Królówka and the Łychów. Meteorological data for analysis, i.e. air temperature and soil humidity, wind speed, precipitation sum and length, were taken from the station Jagiellonian University in Łazy. To determine the course of changes of stability factor used capabilities Geostudio 2007 (Slope/W, Vadose/W, Seep/W). The work is a pre-development servant indicate the formation of shallow landslides present in silt. Results of the stability calculations confirmed the common opinions that conditions of slope balance are very strongly connected with atmospheric precipitation, but it was also shown that they also depend significantly on thermal conditions. These calculations showed that in the period 2009–2013 the most unfavorable conditions of stability were obtained in May 2010, which is a confirmation of the situation observed in reality.
Authors and Affiliations
PIOTR DEMCZUK, , TYMOTEUSZ ZYDROŃ, MARCIN SIŁUCH, MARIUSZ KLIMEK
Keywords
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