水文地质工程地质2012，Vol.39Issue(3)：65-69,5.
辽西地区风积砂土振动液化特性的试验研究
Experimental research on liquefaction of sands in the Liaoxi aeolian area
摘要
Abstract
For the purpose of examining the characteristics of the aeolian sand in western Liaoning, this paper takes the aeolian sand as an experimental object to test the earthquake liquefaction properties. Based on the experiment data, the consolidation ratio, confining pressure, density and fine-grained content are analyzed to examine the influence rules of such factors to the anti-liquefaction strength and the different content on dry density and the fine-grained to the sand dynamic pore pressure development model is established. The pore pressure has two distinct trends. Under the condition of pressure bias and consolidation, it can be simulated by the hyperbolic model, but while the pressure is equalizing and consolidation, it is in agreement with the curve shape suggested by Seed and Zhang. Finally, we conclude that the factors such as density, fine-grained content and so on will have certain impact on the law of pore pressure increase.关键词
风积砂土/砂土液化/动三轴仪/抗液化强度/振动孔压Key words
aeolian sand/ soil liquefaction/ dynamic triaxial apparatus/ anti-liquefaction strength/ dynamic pore water pressure分类
建筑与水利引用本文复制引用
张向东,王兆昌,王晓华,于海舰..辽西地区风积砂土振动液化特性的试验研究[J].水文地质工程地质,2012,39(3):65-69,5.基金项目
国家自然科学基金(50978131) （50978131）
