Abstract
Reliability-based design is required to minimise risk induced by soil properties variation and laboratory tests discrepancy in geotechnical engineering. A procedure was proposed to analyse probability of post-construction settlement (PCS) after vacuum consolidation, and to calibrate the design criteria to achieve a target reliability index. A Monte-Carlo simulation based on analytical solution of vacuum consolidation was developed to incorporate both primary and secondary consolidation settlement. The reduction of secondary consolidation coefficient during construction was considered in the method. This design and analysis approach were applied in the design review of Kalibaru port, Indonesia. Statistical analysis on soil properties was performed based on comprehensive investigations. The original design was reviewed by using both deterministic analysis with FEM and reliability-based analysis with the proposed method. Lastly, the coefficient of variation (COV) of 1.164 was found for PCS, and design criteria were calibrated to target different levels of Pe, from 6.7% to 25%.
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He, W., Sams, M., Kok, B., Rega, P. (2018). Monte-Carlo Simulation of Post-construction Settlement After Vacuum Consolidation and Design Criterion Calibration. In: Li, L., Cetin, B., Yang, X. (eds) Proceedings of GeoShanghai 2018 International Conference: Ground Improvement and Geosynthetics. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0122-3_9
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DOI: https://doi.org/10.1007/978-981-13-0122-3_9
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