A case history is presented where in situ flat dilatometer (DMT) testing has been effectively used for evaluating the stability of a clay slope where a new massive public building had to be constructed. The inspection of the profiles of the horizontal stress index (Kd) obtained from DMT tests performed along a cross section of the slope clearly highlighted the presence of a "weak zone" ("plagued" by several Kd=2 layers), not detected by previous investigations, embedded in a more consistent soil mass and located just in correspondence of the new building. Based on DMT results, stability analyses were carried out assuming residual shear strength parameters in the "weak zone" and peak shear strength parameters outside this zone. The analyses results pointed out the necessity to improve the stability of the slope.
|Titolo:||Stability Evaluation of a Slope in a Building Area by In Situ Dilatometer (DMT)|
TOTANI, Gianfranco (Corresponding)
|Data di pubblicazione:||1997|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|