饱和黄土地基的液化数值分析  

NUMERICAL ANALYSES OF LIQUEFACTION OF SATURATED LOESS GROUND

作　　者：何开明[1] 王兰民[2] 曾国熙[3] 

机构地区：[1]浙江大学土木工程系,杭州310027 [2]中国地震局兰州地震研究所,兰州730000 [3]浙江大学,杭州310027

出　　处：《工业建筑》2001年第7期29-31,7,共4页Industrial Construction

摘　　要：通过将黄土的孔压增长模型用于碎石桩黄土地基的地震液化有限元数值分析 ,表明地震过程中黄土的孔隙水压力增长很快 ,震后消散缓慢 ,并伴随有大的沉降量。碎石桩的抗液化 (排水 )效果明显 。In the paper, the pore water pressure generation model of loess was first applied to the finite element numerical analysis of earthquake liquefaction in loess improved by gravel piles. The calculation results show that the pore water pressure in a saturated loess increased very rapidly during earthquake and dissipated slowly after earthquake and that the large settlement was induced. The anti liquefaction(draining water) effect of gravel piles is obvious, but the tributary area to gravel pile is limited.

关 键 词：饱和黄土地基 孔隙水压力 有限元 地基液化 

分 类 号：TU444[建筑科学—岩土工程]