大型预制管桩桩身质量检测方法研究  

Study on Quality Inspection Method of Large-scale Precast Pipe Pile

作　　者：张毅 ZHANG Yi(Guangdong General Engineering Inspection Co.,Ltd.Guangzhou 511400,China)

机构地区：[1]广东全科工程检测有限公司,广州511400

出　　处：《广东土木与建筑》2023年第8期32-34,88,共4页Guangdong Architecture Civil Engineering

摘　　要：基于广东省某高速公路项目的大型预制管桩为依托,对该项目部分工程桩先后采用高应变法、低应变法和孔内摄像法进行检测,并对比分析其桩身完整性结果。结果表明高应变法、低应变和孔内摄像法每个方法都存在其局限性,高应变法检测工作繁琐,不适合大面积开展检测,采用“低应变孔内摄像综合法”检测对缺陷的判断结果更为直观,更能保证检测结果的准确性,检测效率高,更适合现高速公路大型预制管桩的检测效率。Based on the large-scale precast pipe pile of an expressway project in Guangdong Province,the high-strain method,low-strain method and in-hole camera method were adopted to test the piles of some projects of the project successively,the results of pile integrity are compared and analyzed.The results show that the high strain method,the low strain method and the in-hole camera method all have their limitations,using:"Low strain hole camera synthesis method"to detect the defects of the judgment results more intui‐tive,more to ensure the accuracy of the detection results,high detection efficiency,it is more suitable for the detection efficiency of large scale precast pipe pile in expressway.

关 键 词：桩基检测 大型预制管桩 低应变法 孔内摄像法 

分 类 号：U443.157[建筑科学—桥梁与隧道工程]