TY - JOUR
T1 - WAVE BASED METHOD FOR 2D UNSATURATED POROELASTIC SOIL UNDER HARMONIC LOADING
AU - Lainer, M.
AU - Muller, G.
N1 - Publisher Copyright:
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PY - 2022
Y1 - 2022
N2 - The Wave Based Method (WBM), which describes field variables of a boundary value problem with weighted wave functions, is used to model a layered halfspace under harmonic loading. This 2D soil structure is investigated for partially saturated layers. According to the Berryman-Thigpen-Chin model (BTC model) the capillary effects between the water and air phases enclosed by pores are negligibly small for elastic waves in the low frequency range. The mixture of water and air is treated as one fluid, for which the material parameters used in Biot’s theory for fully saturated poroelastic structures have to be computed. Within this work, the BTC model is applied to describe soil layers within a halfspace, which are not perfectly dry or fully saturated. It is presented how the degree of saturation within a partially saturated soil layer affects the system’s response.
AB - The Wave Based Method (WBM), which describes field variables of a boundary value problem with weighted wave functions, is used to model a layered halfspace under harmonic loading. This 2D soil structure is investigated for partially saturated layers. According to the Berryman-Thigpen-Chin model (BTC model) the capillary effects between the water and air phases enclosed by pores are negligibly small for elastic waves in the low frequency range. The mixture of water and air is treated as one fluid, for which the material parameters used in Biot’s theory for fully saturated poroelastic structures have to be computed. Within this work, the BTC model is applied to describe soil layers within a halfspace, which are not perfectly dry or fully saturated. It is presented how the degree of saturation within a partially saturated soil layer affects the system’s response.
KW - Poroelasticity
KW - Unsaturated Soils
KW - Wave Based Method
UR - http://www.scopus.com/inward/record.url?scp=85146931544&partnerID=8YFLogxK
U2 - 10.23967/eccomas.2022.295
DO - 10.23967/eccomas.2022.295
M3 - Conference article
AN - SCOPUS:85146931544
SN - 2696-6999
JO - World Congress in Computational Mechanics and ECCOMAS Congress
JF - World Congress in Computational Mechanics and ECCOMAS Congress
T2 - 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022
Y2 - 5 June 2022 through 9 June 2022
ER -