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Load-displacement and upper-bound solutions of a loaded laterally pile in clay based on a total-displacement-loading EMSD method |
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| Institution: | 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;2. Centre for Offshore Research and Engineering, Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore;1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;2. Centre for Offshore Research and Engineering, Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore;1. Norwegian Geotechnical Institute, Sognsveien 72, 0855 Oslo, Norway;2. Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy |
| Abstract: | A total-displacement-loading approach based on the extended mobilisable strength design (EMSD) method is developed for predicting nonlinear foundation responses and upper-bound capacities with continuous velocity fields. Different from EMSD, the new approach turns optimizing a minimum energy solution into solving an elastic problem with strain-dependent equivalent elastic modulus. The strain-dependent modulus is determined by a nonlinear iterative method. This transform guarantees that the reaction force is consistent with the elastic solution in early stages of loading and gradually approaches an upper-bound solution at a large value of displacement. The approach is demonstrated on a problem of the laterally loaded pile. |
| Keywords: | Upper bound Laterally loaded piles Mobilisable strength design P-y curve |
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