静载试验作用下的基桩竖向抗压承载力分析

打开文本图片集

中图分类号：TU473；TQ352 文献标志码：A 文章编号：1001-5922（2025）12-0256-04

Abstract：The detectionof vertical compressive bearing capacityof foundation piles isakeylink inengineering designandacceptance.Inparticular，the vertical compressive static load testof enginering piles is to provide importanton-site data support for design engineers inthe design of pile foundation engineering.Itcan helpdesigners to integrate variousconstructionconditions such assitegeological conditions and upper load ofstructures，and reasonably optimize various parameters such as pile length，pile diameter and pile end bearing layer selection.In this paper，taking three test piles in practical enginering as an example，the influence of reboundrate on the bearing capacityoffoundation piles is discussed by analyzing the rebound rate after static load test indetail.Bycomparing the dataof the initial staticloadandtherecompressionafterrepose，it is foundthat the bearing capacityof the pile with high reboundraterecovers wellaftertherest period，and thedisplacementofthe piletopunderthesame load changeslitle，indicatingthattheelastic-plastic deformationunderthepile-soil synergistic system is relativelystable.

Keywords： pile bearing capacity;static load rebound rate;pile-soil interaction; static load test

基桩作为上部结构与地基间的关键连接体，承担着荷载传递和建筑物安全的重任，其承载力评估对工程质量至关重要。（剩余5988字）