Numerical study of rheologic and soil damage for ground improvement by vacuum preloading |
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Authors: | WU Yue-dong Z HENG Shi-hua |
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Affiliation: | 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering;Hohai University;Nanjing 210098;China;2. Geotechnical Research Institute;China |
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Abstract: | Based on the characteristics and reinforcement mechanism of vacuum preloading applied in high way soft foundation, the theoretical calculation method of vacuum preloading was presented. According to the equivalent method derived from sand drain foundation subjected to plane and axisymmetric conditions, the three dimensional problem was transformed into plane strain problem. The modified Komala-Huang model was used to model the rheological behavior and the damage theory was also introduced to consider the ef... |
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Keywords: | vacuum preloading plane stain FEM rheology damage consolidate |
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