三峡大学学报（自然科学版）2018，Vol.40Issue(4)：28-32,5.DOI:10.13393/j.cnki.issn.1672-948X.2018.04.006
平原水库土石坝饱和砂土地基地震液化分析
Seismic Liquefaction Analysis of Saturated Sandy Soil Foundation of Plain Reservoir
摘要
Abstract
FLAC3D is used to analyze the characteristics of liquefaction of saturated sandy soil foundation in a reservoir dam foundation with liquefaction soil under different water levels.How the pore water pressure changes under seismic loading is discussed and the displacement responses of earth-rock dam in various typical nodes are analyzed.The results show that under the condition of the fortification intensity of seven degrees,the liquefaction soil approaching the toe of the dam in a low upstream water level is more likely to liquefy than it is in a high water level;but the liquefaction soil approaching the foot of the dam in a low water level is less likely to liquefy than it is in a high water level.The liquefaction soil beneath the body of the dam is the most difficult to liquefy.The horizontal displacement of the dam body is greater than that of vertical displacement.关键词
库水位/砂土液化/超孔压比/动力分析Key words
water level of reservoir/sandy soil liquefaction/extra pore water pressure ratio/dynamic analysis分类
建筑与水利引用本文复制引用
胡南雄,任旭华,张继勋..平原水库土石坝饱和砂土地基地震液化分析[J].三峡大学学报（自然科学版）,2018,40(4):28-32,5.基金项目
国家科技支撑计划项目(2015BABC7B10) （2015BABC7B10）
