真空预压条件下的砂井地基Hansbo固结解

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Abstract The Hansbos consolidation theory for sand-drained ground was extended to the condition of vacuum preloading，in which the distribution pattern of negative pressure along the sand drain was considered，and then it was compared with the existing Dong Zhiliangs solution and Indraratnas solution to verify its correctness. The results show that the relation of the radial consolidation degree Ur obtained by the three analytical solutions is that the new solution＞Dong Zhiliangs solution＞Indraratnas solution. When Th≤0.5，the relative error among the three analytical solutions is relatively large，but the absolute error is small；and then the error decrease gradually with time(Th＞0.5). The new solution is more close to Dong Zhiliangs solution than Indraratnas solution；and its form is simple，which is advantaged to engineering practice. When the well resistance of sand drain isnt considered，the three analytical solutions can be simplified to Hansbos solution under vacuum preloading.

Key words： soil mechanics vacuum preloading radial consolidation theory for sand-drained ground Hansbos solution distribution pattern of negative pressure in sand drain

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	ZHOU Qi
	ZHANG Gongxin
	WANG Youyuan
	DENG Zhiyong

Cite this article:

ZHOU Qi,ZHANG Gongxin,WANG Youyuan, et al. HANSBOS CONSOLIDATION SOLUTION FOR SAND-DRAINED GROUND UNDER VACUUM PRELOADING[J]. , 2010, 29(S2): 3994-3999.

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https://rockmech.whrsm.ac.cn/EN/Y2010/V29/IS2/3994

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