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Volume 16, Issue 32 (11-2020)                   Marine Engineering 2020, 16(32): 35-45 | Back to browse issues page


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Gholipour S, Makarchian M, Gholipour R. Study of the bearing capacity and settlement behavior of skirted foundations resting on cohesive soils. Marine Engineering 2020; 16 (32) :35-45
URL: http://marine-eng.ir/article-1-754-en.html
1- Buali Sina University
2- Islamic Azad University, Urmia
Abstract:   (3198 Views)
The limitations of shallow foundations in terms of bearing capacity and settlement in soft clayey soils show the importance of the studying about so-called skirted foundations. The skirted foundations with penetrating into the soil and lateral confinement of soil can improve the bearing capacity and settlement behavior. These foundations are suitable for use in various applications such as seawater, beaches and dry lands. The objectives of this research are to evaluate the behavior of the skirted circular foundations on soft clay bed, and to estimate the improvement of bearing capacity and settlement reduction of skirted foundations using the numerical modeling. Various parameters including foundation diameter, skirt depth ratio, un-drained strength of clay, roughness of interface between foundation-soil and soil heterogeneity were investigated. The analysis results showed a significant improvement in skirted foundations performance in terms of bearing capacity enhancement and settlement reduction compared to the surface foundations. The improvement values increased with increasing the ratio of skirt depth, the roughness of the foundation surface and decreasing the shear resistance of the clay. The bearing capacity values of skirted foundations for the same depth and diameter were obtained close to the values of pier foundations. 
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Type of Study: Research Paper | Subject: Marine Structures and near shore
Received: 2019/08/14 | Accepted: 2020/08/11

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