Experimental study on liquefaction fluidity of saturated loess

被引：0
|
作者：
Ma X.-Y. [1 ,2 ]
Wang L.-M. [1 ,2 ]
Wang Q. [1 ,2 ]
Wang P. [1 ,2 ]
Zhong X.-M. [1 ,2 ]
Pu X.-W. [1 ,2 ]
Liu F.-Q. [1 ,3 ]
机构：
[1] Key Laboratory of Loess Earthquake Engineering, China Earthquake Administration, Lanzhou
[2] Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou
[3] Department of Civil Engineering and Mechanics, Lanzhou University, Lanzhou
来源：
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2021年 / 43卷
关键词：
Apparent viscosity; Liquefaction slip; Loess; Shear thinning;
D O I：
10.11779/CJGE2021S1029
中图分类号：
学科分类号：
摘要：
Based on the laboratory dynamic liquefaction tests, the triaxial shear tests are carried out on the liquefied samples, and the liquefaction fluidity of loess is studied by using the fluid mechanics method. The results show that the apparent viscosity of liquefied samples increases first and then decreases when subjected to triaxial shear, that is, the flow characteristics will change from "shear thickening" to "shear thinning". This phenomenon may be related to the special structure of loess and the conservative liquefaction standard adopted in the tests. The special geological environment and the "shear thinning" property of loess in Shibeiyuan area lead to the occurrence of low-angle and long-distance liquefaction slip disasters. © 2021, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.
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页码：161 / 165
页数：4
相关论文
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