摘要
针对天津滨海地区软土地基,利用有限元软件MIDAS进行群桩效应的影响因素分析,讨论了在不同桩长、桩径、桩距以及不同桩数等情况下群桩效应系数以及承台底土分担荷载比例的变化规律。研究发现群桩效应系数随桩长、桩径和桩数的增加减小,桩距对群桩效应系数影响很小,承台底土分担的荷载比例随着桩距和桩径的增加而增大,随着桩长和桩数的增加而减小。
Based on the soft soil foundation of Tianjin Binhai New Area,the change of pile group effect coefficient in different pile length,pile diameter,pile spacing and different number of pile were analyzed by using the finite element software MIDAS.The result shows that the pile group effect coefficient decreases as the increase of the pile length,pile diameter and pile number.The pile spacing has little effect on the pile group effect coefficient.The load ratio shared by the soil under the cushion cap increases as the pile spacing,the pile diameter decreases and as the pile length,pile number increases.
出处
《河北工程大学学报（自然科学版）》
CAS
2013年第4期50-53,共4页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
软土
有限元
群桩效应
soft soil
finite element
pile group effect
