静载试验和低应变法对PHC管桩性能的检测  

Performance Test of PHC Pipe Piles by Static Load Test and Low Strain Method

作　　者：靳涛 钱自成 张紫光 JIN Tao;QIAN Zi-cheng;ZHANG Zi-guang(China Construction Fifth Engineering Bureau Co.,Ltd.,Changsha,Hunan,410000,China)

机构地区：[1]中国建筑第五工程局有限公司,湖南长沙410000

出　　处：《建材技术与应用》2024年第5期45-49,共5页Research and Application of Building Materials

摘　　要：采用静载试验和低应变反射波法对PHC管桩的性能进行检测,通过抽检小比例PHC管桩进行静载试验对承载力进行检测,利用低应变反射波法对桩身完整性进行检测。结果表明:利用静载试验得出位移-荷载曲线的最大沉降量为14.78 mm,位移-对数时间曲线均较为平直发展;利用低应变反射波法检测PHC管桩桩身的完整性,其符合设计要求,可满足工程安全性要求。The static load test and low strain reflection wave method were used to test the performance of PHC pipe pile,the static load test was used to test the bearing capacity of small proportion of PHC pipe pile,and the low strain reflection wave method was used to test the integrity of the pile.The results show that the maximum settlement of the displacement-load curve is 14.78 mm,and the displacement-log time curve is relatively straight.The integrity of PHC pipe pile body detected by low strain reflection wave method can meet the design requirements and the engineering safety requirements.

关 键 词：桩基检测 PHC管桩 静载试验 Q-S曲线 低应变反射波法 

分 类 号：TU473[建筑科学—结构工程]