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Geomechanics and Engineering Volume 5, Number 5, October 2013 , pages 447-462 DOI: https://doi.org/10.12989/gae.2013.5.5.447 |
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Improvement of tip analysis model for drilled shafts in cohesionless soils |
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Yit-Jin Chen, Hao-Wei Wu, Maria Cecilia M. Marcos and Shiu-Shin Lin
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| Abstract | ||
| An analysis model for predicting the tip bearing capacity of drilled shafts in cohesionless soils is improved in this study. The evaluation is based on large amounts of drilled shaft load test data. Assessment on the analysis model reveals a greater variation in two coefficients, namely, the overburden bearing capacity factor (Nq) and the bearing capacity modifier for soil rigidity ( | ||
| Key Words | ||
| drilled shafts; cohesionless soils; tip bearing capacity; friction angle; effective shaft depth | ||
| Address | ||
| 1) Yit-Jin Chen, Hao-Wei Wu, Maria Cecilia M. Marcos and Shiu-Shin Lin: Department of Civil Engineering, Chung Yuan Christian University, Chung-Li, 32023, Taiwan; 2) Maria Cecilia M. Marcos: Department of Civil Engineering, Adamson University, Manila, Philippines. | ||