挤扩多盘桩承力扩大盘直径对单桩承载力影响的试验研究

通过对挤扩多盘桩不同承力扩大盘直径进行荷载作用下试验研究,观察盘下桩周土的破坏情况,对承力扩大盘直径对挤扩多盘桩单桩承载力影响的理论分析结论进行验证,为实际设计中综合考虑影响挤扩多盘桩单桩承载力因素提供了依据。

TESTING RESEARCH ABOUT THE DIAMETER OF THE BEARING PUSH-EXTEND REAMED OF PUSH- EXTENDMULTI- UNDER- REAMED PILE AFFECTING THE BEARING CAPABILITY OF THE PILE

In the paper, through testing research about the stress of soil around the pile when the bearing push-extend reamed have the different diameter, the failure of soil around pile is observed. The theoretical results are proved about the influence for bearing capacity of the push-extend Multi-under-reamed Pile, raised by the different diameter of the bearing push-extend reamed, the respond results are defined, and it is put forward that the theoretical basis of synthetically researching the bearing capacity of the pile of the push-extend Multi-under-reamed Pile.