Comparison of liquefaction potential of loess in Lanzhou, China, and Memphis, USA

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• 作者：Hwang ; H. ; Wang ; L. ; Yuan ; Z.
• 关键词：Earthquake ; Liquefaction potential ; Lanzhou ; Loess ; Memphis ; Pore pressure ; Residual strain ; Shear stress
• 刊名：Soil Dynamics and Earthquake Engineering
• 出版年：2000
• 出版时间：December, 2000
• 年：2000
• 卷：20
• 期：5-8
• 页码：389-395
• 全文大小：968 K

文摘

This paper presents an evaluation of the liquefaction potential of loess in Lanzhou, China, and Memphis, USA. The topography, stratigraphy, and genesis of loess in these two areas were investigated and compared. Several loess samples in each study area were taken and their physical indices were determined. In addition, the microstructures of these loess samples were investigated using an electron microscope, and dynamic triaxial tests were performed using an artificial seismic wave. The results of this investigation indicated that both Lanzhou loess and Memphis loess have a potential for liquefaction, but Memphis loess is less susceptible to liquefaction. Furthermore, Lanzhou loess and Memphis loess behave differently during ground shaking.