Landslides – A Result of Urban Expansion in the Metropolitan Area of Iasi City
Tomme: LIX (LXIII) Fascicle: 2 | 2013
Pages: 69-78
Abstract text:
Landslides occur as a direct result of the influence of both natural and anthropogenic factors over the foundation terrain. Expanding urban areas as well as the rising occupancy of the available construction spaces have led to changes in soil structure. Thus, areas that were previously considered inappropriate for building construction have now been reassessed and can be used to achieve the desired objectives, benefitting from new building materials and technologies. The rapid development of the built environment, often chaotic, has some advantages but developers have to take into account the fact that it influences the surrounding areas, local and general stability of slopes, leads to hydrostatic level variation and not least changes the natural environment on site. Landslides are a frequently encountered phenomenon in Romania, which has as main causes the lithological substratum, climatic conditions and human activity. The paper reviews a case study from the Iasi city area, taking into consideration all of these aspects. In these respect, the paper characterizes the soil types present in the area and summarizes the causes that led to landslide appearance in the region. In the presented case study a slope stability analysis is carried out taking into account the changes that have occurred in the groundwater flow regime and loading conditions, as a result of construction of buildings on that site. The analysis is done using a finite element program. Finally the paper presents some conclusions resulting from studies both bibliographic and practical.
Key Words:
geomorphologic characteristics; hydrostatic level; finite element method; slope stability.
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