基桩孔内摄像检测技术应用研究  

Research on the Testing Method with Video Monitor Through the Hole

作　　者：邱斌 彭文柏[1,2,3] 赵宝生 刀杰 钱雪鑫[3] QIU Bin;PENG Wenbo;ZHAO Baosheng;DAO Jie;QIAN Xuexin(Yunnan Key Laboratory of Building Structure and New Materials,Kunming Yunnan 650223,China;Kunming Key Laboratory of Building Structural Safety and New Technology,Kunming Yunnan 650223,China;Yunnan Institute of Building Research,Kunming Yunnan 650223,China)

机构地区：[1]云南省建筑结构与新材料企业重点实验室,云南昆明650223 [2]昆明市建筑工程结构安全和新技术重点实验室,云南昆明650223 [3]云南省建筑科学研究院,云南昆明650223

出　　处：《工程质量》2021年第4期60-64,共5页Construction Quality

摘　　要：针对基桩孔内检测技术的应用原理、技术要点进行较详细的介绍,并根据两项工程应用案例,可得以下主要结论:1)孔内摄像检测技术可直观、清晰地检测基桩孔内浇筑不密实部位;2)孔内摄像检测技术与低应变检测技术配合可高效地对基桩桩身不密实区域进行检测;3)基桩孔内摄像检测技术也可有效应用于直观判断抗浮桩与承台连接处连接质量、破损状况等领域;4)基桩桩身完整性检测时,应尽量收集施工资料,当出现信号异常时,可借助施工资料进行有效分析,做出准确判断,确保检测质量。The application principle and technical key points of the in-hole inspection technology of foundation pile are introduced in detail,and the following main conclusions can be drawn according to two engineering application cases:1)The incompact place of the pile can be tested visually and clear with TMV;2)The incompact place of the pile can be located efficiently by use the low-strain integrity testing and TMV;3)The connection quality and the damaged condition of the connection for anti-floating pile and cap can be tested efficiently and visually with TMV;4)During the test for pile integrity,the means of construction for the project should be collected,for the results and the quality of the test can be assured by analyzed them efficiently when the signal went off.

关 键 词：桩身完整性 基桩检测 孔内摄像检测 桩身质量 

分 类 号：TU473.16[建筑科学—结构工程]