Issue 49

M. Zhelnin et alii, Frattura ed Integrità Strutturale, 49 (2019) 156-166; DOI: 10.3221/IGF-ESIS.49.17 162 a b Figure 3 : Distribution of radial displacement r u in excavation in a clay stratum at depth H 300 m (a) and 500 m (b). a b Figure 4 : Distribution of radial displacement r u in excavation in a sand stratum at depth H 300 m (a) and 500 m (b). a b Figure 5 : Distributions of radial displacement r u in excavation in a chalk stratum at depth H 300 m (a) and 500 m (b). a b c Figure 6 : Distributions of shear strain rz  in depending on radius on the top end of the ice-soil cylinder of frozen clay (a), sand (b), chalk (c). Black curve is given by the expression (14). Other curves are obtained by the numerical simulation.