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IJEGE 05 Volume 01

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IJEGE 05 Volume 01
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IJEGE 05 Volume 01
The interpretation of combined geophysical methods [Ground Penetrating Radar (GPR), Electrical Resistivity Tomography (ERT) and Seismic Refraction Tomography (SRT)] are proposed to assess the physical properties characterizing the near surface porous formations, and in particular way the volumetric water content. The search was carried out in semi-controlled situations. The variations of several geophysical parameters (the electromagnetic (EM) wave velocity, the seismic wave velocity and the electri
IJEGE 05 Volume 01
Determining the sustainable well yield in heterogeneous aquifers is an arduous task, because of the variability of the time-drawdown relation. The present work deals with the pumping response of wells that penetrate in the volcanic rocks of Naples and Viterbo; in these areas the average aquifer yield is lower than 10 l/s per km2. Four wells have been tested at a constant discharge: P1, 20 m deep, penetrates a leaky aquifer in pyroclastic soils and Neapolitan Yellow Tuff and has been tested at
IJEGE 05 Volume 01
The detailed study of the detachment surfaces left by rockfalls,together with the 3-D analysis of unstable rock volumes, confirm the fundamental role of intact rock bridges, with different location, that provide an elevated, localised, strength contribution and that are then broken at the moment of the collapse. The back-analysed case histories, carried out assuming a limit equilibrium principle, have ascertained that the limestone rocks involved in rockfalls had mean values of tensile and shear strength
IJEGE 05 Volume 01
The paper reports the results of a study conducted on the classification of Italian seismic zones. The study investigated seismic classification alternatives, identifying actions to be applied to the design of new structures and to the retrofitting of existing ones for seismic compliance. The findings from the study were compared with the contents of Prime Minister's Decree 3274/03 and with the Consolidated Text of provisions arising from Decree of the President of the Republic no. 380 of 6 June 2
IJEGE 05 Volume 01
This paper gives the results of a series of hydrogeological and hydrochemical investigations carried out on the multilayered aquifer system of Cremona ­ characterized by a fresh water/salt water interface 400-500 meters below ground level ­ where a new well field is to be built east of town (AEM, 2001). The well field project is being carried out by the Municipal Energy Company of Cremona (AEM) and calls for the abandoning of a number of older wells and the building of ten new wells. Up to now fou
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