海域工程场地液化判别中震级取值问题探讨

doi:10.13722/j.cnki.jrme.2016.1419

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Abstract

When the classical Seed¢s liquefaction resistance shear stress analysis method is used to evaluate the liquefaction potential of an engineering site，seismic magnitude and other several key parameters are essential. However，it is often difficult to determine the seismic magnitude parameter for some ocean engineering sites，because of the lack of nearby referential engineering sites. In order to solve this problem，we proposed that the equivalent seismic magnitude determined from the comprehensive seismic risk probability analysis method could be used as the reference magnitude for the evaluation of site liquefaction potential. The proposed method was applied to two ocean oil platform sites in Bohai Sea to evaluate the liquefaction potential of the saturated sand layers with a thickness of 15 m below seabed mud. The results showed that the method has satisfying effect and practical value in liquefaction potential evaluation for ocean engineering sites.

Key words： soil mechanics ocean engineering site sandy soil liquefaction evaluation seismic magnitude parameter determination Bohai sea oil platform

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	Articles by authors
	HUANG Yahong
	LU Yuejun
	PENG Yanju
	SHA Haijun

Cite this article:

HUANG Yahong,LU Yuejun,PENG Yanju, et al. Discussion on seismic magnitude determination in liquefaction probability analysis of ocean engineering sites[J]. , 2018, 37(S1): 3765-3774.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.1419 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS1/3765

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