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IJEGE 18 - Volume 02

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IJEGE 18 - Volume 02
IJEGE 18 - Volume 02
The properties of three expansive clay-rich soils from Algeria, before and after treatment with various quantities of cement was explained using physico-chemical tests. SEM, MIP and XRD as well as the adsorption of methylen blue molecule (Vbs) were carried out to observe the microstructure change under both the short term flocculating effect of Ca2+ and the long term effect of precipitated products during cement hydration (binding effect). The flocculating effect contributed also to the change of proctor op
IJEGE 18 - Volume 02
The database related to the Italian Catalogue of Earthquake-Induced Ground Failures (CEDIT), was recently upgraded and updated to 2017 in the frame of a work-in-progress focused on the following issues: i) reorganization of the geo-database architecture; ii) revision of the earthquake parameters from the CFTI5 e CPTI15 catalogues by INGV; ii) addition of new data on effects induced by earthquakes occurred from 2009 to 2017; iv) attribution of macroseismic intensity value to each effect site, according to th
IJEGE 18 - Volume 02
The Gallivaggio rock cliff, in the San Giacomo Filippo district (Sondrio province, Italy) has been monitored by ARPA, Lombardy’s Geological Monitoring Centre (CMG) since 2011. The main mountain passage, route S.S. 36, crosses this mountain area. The village of Gallivaggio was built at the beginning of 17th century and now has a restaurant, some houses and the important sanctuary heritage site. ARPA CMG has carried out a variety ofon-site observational approaches to manage the geological monitoring in Gal
IJEGE 18 - Volume 02
An active debris flow seriously threatens the urbanized area of Fiames, near Cortina d’Ampezzo (Dolomites, Italy) and the National road. In September 1997, following a 25,000 cu.m magnitude debris flow that temporarily dammed the river, a retention basin with a storage capacity of about 15,000 cu.m, was built upstream the National road. In 2002 a warning system was installed, based on the early detecting of debris-flow-induced ground vibrations and the overcoming of a flow-stage threshold in the debris ba
IJEGE 18 - Volume 02
The majority of dams in Algeria have some thirty years lifetime, when it comes to tanks intended for drinking water supply or irrigation whose socioeconomic interests justify an unlimited service guarantee. It matters to predict the water retention filling rate and protect these dams from siltation that seems very acute. This paper deals with the problem of siltation in Foum Lgherza dam, in the East Algeria. We attempt to identify siltation behavior according to a detailed analysis based on the comparativ
IJEGE 18 - Volume 02
In this work, we analyzed the results of different soil laboratory tests performed in a flume test apparatus with the aim to describe and quantify some particular aspects of the modelling of soil slip phenomena. In particular, we analyzed the influence, in terms of slope stability, of the thickness of two strata (a cohesive one and a not cohesive one) composing the slope model. To simulate the presence of cohesion, a partially saturated sand was employed, while the same sand but in dry conditions was used t
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