加筋碎石桩单桩极限承载力

1前言碎石桩在地基处理中应用得非常广泛,它既可以提高地基承载力、降低压缩量,还可以配合砂垫层等其它措施加快软土地基的固结沉降速度,从而达到加固地基的目的。但是,碎石桩的工作需要一定的径向约束力。桩在荷载作用下在桩顶2~3倍桩径的深度范围内会发生侧向变形,引起周围粘

Ultimate Bearing Capacity of Single Reinforced Gravel Pile

In the paper,the failure models of the gravel pile were discussed.The effect of reinforcement on bearing capacity of the pile is analyzed and the computation formula of the ultimate bearing capacity of the pile was derived by the limit equilibrium principle.By analysis: the bearing capacity of the pile was greatly increased if the pile was tied with geogrid or geotextile,particularly by high tensile strength geogrid or geotextile;on the usual condition,the ultimate bearing capacity of the pile usually decreases as the pile-diameter increased;the bearing capacity would increases with the increasing of the pile matetial friction angle.