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Geomechanics and Engineering Volume 37, Number 5, June10 2024 , pages 527-538 DOI: https://doi.org/10.12989/gae.2024.37.5.527 |
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A two-dimensional hyperbolic spring model for mat foundation in clays subjected to vertical load |
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Der-Wen Chang, Tzu-Min Chou, Shih-Hao Cheng and Louis Ge
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| Abstract | ||
| This study proposes a two-dimensional hyperbolic soil spring model for mat foundations in clays subjected to vertically uniform loads to simplify the complexity of three-dimensional finite element analysis on mat foundations. The solutions from three-dimensional finite element analysis were examined to determine the hyperbolic model parameters of the soil springs underneath the slab. Utilizing these model parameters, normalized functions across the middle section of the mat were obtained. The solutions from the proposed model, along with the approximate finite difference analysis of the mat in clays under vertical load, were found to be consistent with those from the three-dimensional finite element analysis. The authors conclude that the proposed method can serve as an alternative for the preliminary design of mat foundations. | ||
| Key Words | ||
| clay soil; hyperbolic function; mat foundation; nonlinear soil spring; vertically uniform load | ||
| Address | ||
| Der-Wen Chang and Tzu-Min Chou: Department of Civil Engineering, Tamkang University, #151 Ying-Chuan Road, Tamsui District, New Taipei City 251301, Taiwan Shih-Hao Cheng: Taiwan Building Technology Center, National Taiwan University of Science and Technology, #43, Sec. 4, Keelung Rd., Taipei City 106335, Taiwan Louis Ge: Department of Civil Engineering, National Taiwan University, # No. 1, Sec. 4, Roosevelt Rd., Taipei City 106216, Taiwan | ||