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A platform for research: civil engineering, architecture and urbanism
Piecewise-Linear Model for One-Dimensional Consolidation Considering Non-Darcian Flow under Continuous Drainage Boundary
Based on the piecewise-linear consolidation model, this paper presents a consolidation model that considers the drainage conditions and non-Darcian flow of clayey soils. In the proposed model, the continuous drainage boundary is used to reflect the drainage performance of the soil's boundary, and Hansbo’s equation is applied to describe non-Darcian flow of clayey soils. The applicability of the proposed model is validated by comparing its results with existing results. Then the influences of drainage conditions, non-Darcian flow, the ratio of compression index to permeability change index. and self-weight of soil on the consolidation process are analyzed through several cases. The results indicate that both a continuous drainage boundary and Hansbo's flow can significantly slow down the consolidation process, and this effect becomes more obvious with the increase of the ratio of compression index to permeability index. In addition, without considering the influence of soil's weight, the consolidation rate and the final settlement of the soil layer will be underestimated and overestimated, respectively.
Piecewise-Linear Model for One-Dimensional Consolidation Considering Non-Darcian Flow under Continuous Drainage Boundary
Based on the piecewise-linear consolidation model, this paper presents a consolidation model that considers the drainage conditions and non-Darcian flow of clayey soils. In the proposed model, the continuous drainage boundary is used to reflect the drainage performance of the soil's boundary, and Hansbo’s equation is applied to describe non-Darcian flow of clayey soils. The applicability of the proposed model is validated by comparing its results with existing results. Then the influences of drainage conditions, non-Darcian flow, the ratio of compression index to permeability change index. and self-weight of soil on the consolidation process are analyzed through several cases. The results indicate that both a continuous drainage boundary and Hansbo's flow can significantly slow down the consolidation process, and this effect becomes more obvious with the increase of the ratio of compression index to permeability index. In addition, without considering the influence of soil's weight, the consolidation rate and the final settlement of the soil layer will be underestimated and overestimated, respectively.
Piecewise-Linear Model for One-Dimensional Consolidation Considering Non-Darcian Flow under Continuous Drainage Boundary
Liu, Zhongyu (author) / Zhang, Jiachao (author) / Yang, Chenyu (author) / Xu, Chuanyong (author)
2021-03-11
Article (Journal)
Electronic Resource
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