Reliability-based semi-analytical solution for ground improvement by PVDs incorporating inherent (spatial) variability of soil |
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| Affiliation: | 1. School of Resources and Safety Engineering, Central South University, Changsha 410083, China;2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China;3. Huan Provincial Communications Planning Survey & Design Institute, Changsha 410008, China;4. College of Defence Engineering, PLA University of Science and Technology, Nanjing 210007, China;1. College of Electrical and Electronic Engineering, Changchun University of Technology, Changchun 130012, China;2. The Key Laboratory of Complex Systems and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China;1. Department of Electrical Engineering, Yeungnam University, 214-1 Dae-Dong, Kyongsan 712-749, Republic of Korea;2. Department of Mathematics, Periyar University, Salem 636011, India;3. Department of Mathematics, Sungkyunkwan University, Suwon 440-746, Republic of Korea;1. Department of Chemical Engineering, Yeungnam University, 214-1, Dae-hakro 280, Gyeongsan, Gyeongbuk 712-749, South Korea;2. Department of Nanoenergy Engineering, Pusan National University, Busan 46241, South Korea;1. National ICT for Australia (NICTA), School of Computer Science, RMIT University, Melbourne, VIC 3001, Australia;2. Department of Computational Mathematics, Faculty of IT, University of Moratuwa, Katubedda, Sri Lanka |
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| Abstract: | The design of soil consolidation via prefabricated vertical drains (PVDs) has been traditionally carried out deterministically and thus can be misleading due to the ignorance of the uncertainty associated with the inherent (spatial) variation of soil properties. To treat such uncertainty in the design process of soil consolidation by PVDs, stochastic approaches that combine the finite element method with the Monte Carlo technique (FEMC) have been usually used. However, such approaches are complex, computationally intensive and time consuming. In this paper, a simpler reliability-based semi-analytical (RBSA) method is proposed as an alternative tool to the complex FEMC approach for soil consolidation by PVDs, considering soil spatial variability. The RBSA method is found to give similar results to those obtained from the FEMC approach and can thus be used with confidence in practice. |
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| Keywords: | Reliability-based design Soil consolidation Prefabricated vertical drains Finite element method Monte Carlo technique Soil spatial variability |
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