Analytical Solution to Analyze LTP on Column-Improved Soft Soil Considering Soil Nonlinearity
作者： Balaka Ghosh , Behzad Fatahi , Hadi Khabbaz
DOI: 10.1061/(ASCE)GM.1943-5622.0000751
关键词: Timoshenko beam theory 、 Materials science 、 Superposition principle 、 Granular material 、 Soil structure interaction 、 Geotechnical engineering 、 Plane stress 、 Nonlinear system 、 Flexural strength 、 Consolidation (soil) 、 Soil science
摘要: AbstractIn this paper, a mechanical model to idealize the load-settlement response of load transfer platform (LTP) on column-improved soft soil is proposed. This simultaneously considers nonlinear and time-dependent stress-strain behavior negligible tensile strength granular material in LTP. The reinforced Timoshenko beam adopted LTP consider shear flexural deformations. Soft idealized by spring-dashpot system that includes behaviors. columns geosynthetics are modeled with linear Winkler springs applied range stresses rough elastic membrane, respectively. function has been derived for distributed pressure loading plane strain condition. principle superposition used solve fourth-order differential equations. Parametric studies indicate spacing columns, thickness LTP, degree consolidation soil, stif...
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