caa a22 4500 44581232X CHVBK 20180317145215.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s00419-010-0438-3 doi (NATIONALLICENCE)springer-10.1007/s00419-010-0438-3 Osinov V. Institute of Soil Mechanics and Rock Mechanics, University of Karlsruhe, 76128, Karlsruhe, Germany aut Blast-induced waves in soil around a tunnel [Elektronische Daten] [V. Osinov] The paper is concerned with the numerical modelling of waves in saturated granular soil around a cylindrical tunnel with a tubbing-type lining. The waves are induced by a short-term large-amplitude load on the tunnel wall. The soil is assumed to be fully saturated or contain a small amount (a few volume percent) of free gas in the pore water. The behaviour of the solid skeleton is described by a constitutive relation of the hypoplasticity theory. The presence of gas makes the soil stiffness stronger pressure dependent and leads to the formation of a shock front in the soil in the immediate vicinity of the tunnel. Free gas in the pore water is shown to be an adverse factor from the viewpoint of both the residual state of the soil and the deformation of the lining. A permanent reduction of the effective stresses in the soil caused by the wave is stronger for the soil with gas. For a sufficiently large loading amplitude, the wave may lead to the vanishing of the effective stresses and liquefaction of the soil. It is also shown that the presence of gas increases the displacement and the velocity of the tubbings. Springer-Verlag, 2010 Tunnel nationallicence Saturated soil nationallicence Blast-induced wave nationallicence Shock wave nationallicence Liquefaction nationallicence Archive of Applied Mechanics Springer-Verlag 81/5(2011-05-01), 543-559 0939-1533 81:5<543 2011 81 419 https://doi.org/10.1007/s00419-010-0438-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00419-010-0438-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Osinov V. Institute of Soil Mechanics and Rock Mechanics, University of Karlsruhe, 76128, Karlsruhe, Germany aut NATIONALLICENCE 773 0- Archive of Applied Mechanics Springer-Verlag 81/5(2011-05-01), 543-559 0939-1533 81:5<543 2011 81 419 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer