一种基于能量孔隙水压力模型的饱和砂土液化风险评估方法

doi:10.13722/j.cnki.jrme.2020.0906

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Abstract Evaluation of site liquefaction，according to which some remediation measures can be adopted to avoid liquefaction-induced damage，has important research value. Based on cyclic triaxial numerical tests，in this paper， a new energy-based pore pressure model for evaluating site liquefaction was proposed by taking the Arias intensity of seismic waves as the energy parameter，and the effects of the consolidation pressure and the consolidation ratio on the proposed model were discussed. The energy-based pore pressure model was verified by the cyclic triaxial tests results. Based on the verified model，a new method taking into consideration of the permeability and the shear stress reduction coefficient was proposed for evaluating the liquefaction. The new method was verified by centrifuge tests and numerical simulation. The results show that the new method can accurately predict the generation and accumulation of the excess pore pressure and hence，can be used to evaluate the liquefaction of ground.

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soil mechanics liquefaction pore water pressure model Arias intensity
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	Articles by authors
	ZHANG Jianlei1
	CHENG Qiangong1
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	LI Yan4
	ZHANG Enming1
	WU Jiujiang5
	WANG Yufeng1

Cite this article:

ZHANG Jianlei1,CHENG Qiangong1,2, et al. An energy-based pore water pressure model for evaluating liquefaction of saturated sands[J]. , 2021, 40(10): 2136-2148.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0906 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/I10/2136

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