真空预压–电渗联合作用下软黏土非线性大变形固结模型

doi:10.13722/j.cnki.jrme.2018.0821

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Abstract Based on the piecewise linear difference method，a new model of simulating the large strain consolidation of soft clay under the combination of electroomosis and vacuum preloading was developed. The model considers soil nonlinearity and was implemented using FORTRAN. The model was validated by the small strain analytical approach and large strain experiment. The modelling results agree with the analytical solutions and the experimental results. A parametric study was conducted to examine the effects of different combinations of vacuum preloading and electroosmosis. The results show that the combined method outperformed the single-process method. The final average settlements of the soil under varied combinations of vacuum preloading and electroosmosis are approximate. The process of applying the electric field after the surcharge preloading can reduce energy consumption. Further energy reduction can be obtained by confining the degree of consolidation within 80%.

Key words： soil mechanics vacuum preloading electroosmosis large strain consolidation nonlinear energy consumption

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	Articles by authors
	ZHOU Yadong1
	FU Jiyu1
	DENG An2
	CHAI Shouxi1

Cite this article:

ZHOU Yadong1,FU Jiyu1,DENG An2, et al. A nonlinear consolidation model of soft clay under the combination of electroomosis and vacuum preloading[J]. , 2019, 38(8): 1677-1685.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.0821 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/I8/1677

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