GNGTS 2021 - Atti del 39° Convegno Nazionale

421 GNGTS 2021 S essione 3.2 profiling of the slope linked to the construction of the building. These soils, with poor geotechnical characteristics, can cause settlements and deformation of the walls of the building. In conclusion , the joint of geophysical survey with geotechnical tests allow not only to define the geological model of the subsoil but also suggests that the primary cause of the lesions produced is to be found in the differential subsidence due to the textural variability of the subsoil both in the horizontal and vertical direction, passing from sandy silts to silty clays, with a different response to compressibility. Such failures, as evidenced by the oedometric tests, may not fall within the limits that protect the building from damage. Following the investigations carried out and above described, an engineering project for the consolidation of the building with the creation of under-walling on piling was designed. 6. References Forno M.G., Gattiglio M., Comina C., Barbero D., Bertini A., Doglione A., Irace A., Gianotti F., Martinetto E., Mottura A., Sala B.; 2015: Stratigraphic and tectonic notes on the Villafranca d’Asti succession in type- area and Castelnuovo Don Bosco sector (Asti reliefs, Piedmont). Alpine and Mediterranean Quaternary, 28(1), 5-27 Gattiglio M., Forno, M.G., Comina, C., Doglione A., Violanti, D. and Barbero, D.; 2015: The involving of the Pliocene-Pleistocene succession in the T. Traversola Deformation Zone (NW Italy). Alpine and Mediterranean Quaternary, 28(1), 59-70 Gibbs H. J., Holtz W. G.; 1957: Research on determining the density of sands by spoon penetration testing. Proc. 4th ICSMFE, London, 1, 35-39 Schmertmann J.H.; 1977: Use the SPT to measure dynamic soil properties? Yes, but. Dynamic Geotech. Testing, ASTM, Spec. Tech. Pub. 654, 341-355 Skempton A.W.; 1986: Standard penetration tests procedures & the effects in sands of overburden pressure, relative density, particle size, ageing and overconsolidation. Géotechnique. 36(3), 425-447 Corresponding author: diego-barbero@libero.it