摘要
Abstract
The scale model test method was used to analyze the reaction of 5 groups of double-layer soil single pile foundation under large cy-clic load,and to evaluate the effects of cyclic load and static load on the ultimate bearing capacity of pile foundation and pile top settlement.It is found that the ultimate bearing capacity of pile foundation is 3,600 N under static load.Under 0～400,000 cycles,the ultimate bearing ca-pacity of pile foundation decreases with the increase of cycle times,while under 400,000～1.2 million cycles,the ultimate bearing capacity in-creases with the increase of cycle times.The influence trend of the number of cycles on the end axial force and ultimate bearing capacity is ba-sically the same.Under large cyclic loads,the ultimate bearing capacity and ultimate bearing capacity of pile foundation decrease first and then increase.The ultimate bearing capacity of pile foundation under large cyclic load is higher than that under static load.关键词
循环荷载/桩基/极限承载力/桩顶沉降Key words
Cyclic load/Pile foundation/Ultimate bearing capacity/Pile top settlement分类
建筑与水利
