真空预压–电渗法联合加固软黏土地基试验研究

doi:10.13722/j.cnki.jrme.2014.s2.098

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Abstract An electro-osmosis combined with closed vacuum preloading indoor model test was conducted on the soft clay using a self-developed apparatus. Vacuum pressure under the sealing membrane and the plastic drainage board，the change of soil drainage，current intensity and potential were monitored in real-time. After the test，surface subsidence，vane shear strength，moisture content，pH valves of soil and conductivity were measured in the different parts of the soil. The results show that the treatment effect of the combined method is better than that of vacuum preloading alone. Under the combined application，vacuum preloading and electro-osmosis can promote each other. The increase value in anodic resistance is greater than that in cathodic region. The increase of cathodic resistance is primarily related to the changes in soil composition and moisture，and the increase of anodic resistance is primarily related to the increase of interface resistance and the decrease of moisture content. The water can be discharge effectively and the reinforcement effect is improved significantly through the electro- osmosis cathode constituted with plastic drain board and metal electrodes.

Key words： foundation engineering vacuum preloading electro-osmosis soil resistance soil conductivity pH value of soil

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	Articles by authors
	WANG Jun1
	2
	ZHANG Le3
	LIU Feiyu4
	FU Hongtao1
	2

Cite this article:

WANG Jun1,2,ZHANG Le3, et al. EXPERIMENTAL STUDY OF VACUUM PRELOADING COMBINED REINFORCEMENT WITH ELECTRO-OSMOSIS IN SOFT CLAY GROUND[J]. , 2014, 33(S2): 4181-4192.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.098 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4181

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