Semi-analytical solutions to equal-strain consolidation of unsaturated composite ground with granular columns considering well resistance and smear effect

Semi-analytical solutions to equal-strain consolidation of unsaturated composite ground with granular columns considering well resistance and smear effect

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Bibliographic Details
Published in:Arabian journal of geosciences. - Springer International Publishing, 2008. - 16(2023), 6 vom: 29. Mai
Main Author: Zhang, Hongri (Author)
Other Authors: Wang, Lei (Author) Zhang, Liting (Author) Li, Tianyi (Author)
Format: electronic Article
Language:English
Published: 2023
ISSN:1866-7538
External Sources:lizenzpflichtig
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245 1 0 |a Semi-analytical solutions to equal-strain consolidation of unsaturated composite ground with granular columns considering well resistance and smear effect 
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500 |a © Saudi Society for Geosciences and Springer Nature Switzerland AG 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. 
520 |a Abstract The composite ground is composed of middle-reinforced columns and the surrounding soils. For the permeable columns, they can not only withstand external loads but also form good channels for artificial vertical drainage and pore pressure reduction. Meanwhile, the air and water will flow through the vertical boundaries and radial granular columns. Therefore, the well resistance and smear effect cannot be ignored during the consolidation. This paper explored the influence of well resistance and smear effect on the consolidation of unsaturated composite ground with the equal strain hypothesis. Firstly, the polar governing equations are presented based on the flow rule of air and water phases under axisymmetric conditions and the basic relationships between the granular columns and surrounding soils of composite ground. Then, the Laplace transformation and Fourier sine series expansion are employed in the process of solving the governing equations to get the final solutions. By degenerating the solutions in this paper and comparing them with those in the existing literature, the correctness of the results is verified. Finally, the impacts of factors in terms of well resistance, smear effect, and columns on the consolidation behavior are investigated considering well resistance and smear effect, respectively. 
650 4 |a Semi-analytical solution 
650 4 |a Unsaturated composite ground 
650 4 |a Granular columns 
650 4 |a Consolidation 
650 4 |a Well resistance 
650 4 |a Smear effect 
650 4 |a Equal strain assumptions 
700 1 |a Wang, Lei  |4 aut 
700 1 |a Zhang, Liting  |4 aut 
700 1 |a Li, Tianyi  |4 aut 
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