Abstract:In order to evaluate the liquefaction of sandy soil in a depth range from surface to 43 m for the undersea tunnel project of the Hongkong—Zhuhai—Macao Great Bridge in detail,the method which combines the experiment data from the dynamic triaxial liquefaction test and the equivalent uniform cyclic shear stress deduced from the analysis method of equivalent linearized seismic response of soil layers,is used to give a primary evaluation. Then,the dynamic response method for potential liquefaction analysis is used to further evaluate and classify the liquefaction in detail. The result shows that liquefaction is still possible for the sandy soil with the depth more than 20 m. Considering that there is no specific code yet in Chinese Mainland for the evaluation of liquefaction of sandy soil with the depth more than 20 m,the strategy and method in this paper which are used to evaluate the sandy soil liquefaction in deep layer will be useful for references.
黄雅虹,吕悦军,荣棉水,方 怡. 关于深层砂土液化判定方法的探讨——以港珠澳特大桥水下隧道工程场地为例[J]. 岩石力学与工程学报, 2012, 31(4): 856-864.
HUANG Yahong,LU Yuejun,RONG Mianshui,FANG Yi. STUDY OF EVALUATION METHOD OF LIQUEFACTION FOR SANDY SOIL IN DEEP LAYER:TAKING UNDERSEA TUNNEL SITE OF HONGKONG—ZHUHAI—MACAO GREAT BRIDGE FOR EXAMPLE. , 2012, 31(4): 856-864.
中华人民共和国国家标准编写组. GB50011—2010建筑抗震设计规范[S]. 北京:中国建筑工业出版社,2010. (The National Standards Compilation Group of People?s Republic of China. GB50011—2010 Code for seismic design of buildings[S]. Beijing:China Architecture and Building Press,2010.(in Chinese))
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