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IJEGE 09 - Volume 02

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IJEGE 09 - Volume 02
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IJEGE 09 - Volume 02
The paper deals with a methodology to assess the landslide hazard along rivers on the basis of geological and hydraulic conditions,recognized as critical. As an example, the methodology was appliedin the middle Trebbia Valley (Northern Italy) where slopes are characterised by several landslides and the Trebbia River, often braided, curves “weak rocks” (OLIVEIRA, 1990). First the geological and geomorphological setting of the area was analysed, with particular reference to the evolution of the river-bed
IJEGE 09 - Volume 02
The design of the undersea subway named “Sublagunare” joining “Marco Polo” Airport to the city of Venice has required specific research in order to evaluate the environmental impact on the lagoon subsoil. Past geognostic investigations and hydraulic tests have provided a satisfactory geologic and hydrogeologic setting of the area. A finite element 3-D model has been applied to the most critical tract of the planned tunnel. The flow model results have provided a set of predictions about hydraulic he
IJEGE 09 - Volume 02
The paper describes a methodology taken from theory of errors as a suggestion tool to estimate accuracy in hydrological measurements. First it is introduced the statistical theory underlying most of the cases involving errors of observations that can be divided further on into random, systematic and spurious. Then a methodology taken from the theory of errors suggests how to evaluate global error in a quantity function of more than one variable. This when the single variable uncertainty is evaluated from m
IJEGE 09 - Volume 02
The district of Casalabate (Apulia, Southern Italy) is located on the banks of the Adriatic Sea and has been affected by significant land erosion with some houses collapsing and many others becoming unusable. In order to investigate the causes, a detailed campaign of multidisciplinary investigations was performed. It consisted of an integrated geological survey by drilling 23 boreholes and georadar prospecting as well as chemical-physical analysis, thermo salinometric logs and groundwater flow measurement
IJEGE 09 - Volume 02
During the last decade an hydrogeological study has been developed in the Fucino Plain and in the surrounding carbonate aquifers, with the aim of evaluating the relationships between hydrology and agriculture. Meteoclimatic data, discharges of spring and channels, water table monitoring and hydrogeochemical data, including nitrates and pesticides, have been acquired. Results allowed the evaluation of the agricultural impact on groundwater resources, both for management and overexploitation and for nitrat
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