极电法无损检测钢筋笼长度研究与应用  

A Preliminary Study on the Online and Offline Teaching of Nondestructive Testing Technology

作　　者：龙兴灿[1] 李卫峰 LONG Xingcan;LI Weifeng(Nanjing Vocational Instituteof Transport Technology,Nanjing 211188,China)

机构地区：[1]南京交通职业技术学院,江苏南京211188

出　　处：《河南科技》2022年第21期25-28,共4页Henan Science and Technology

基　　金：全国交通运输职业教育科研项目援疆项目(2020GJ604)。

摘　　要：灌注桩钢筋笼长度的检测主要使用磁测井法和电测井法,这两种方法要先进行钻孔,且成本高、周期长。本研究将钢筋笼假设为电极,对其进行供电,测试地表与钢筋笼之间的电位差,与标准钢筋笼电位差进行比较,可得知其长度是否短缺。该方法不用钻孔,且操作简易,为现场检测提供一种新途径。The detection of the length of steel reinforcement cage of cast-in-place pile mainly uses magnetic logging method and electric logging method.These two methods have high cost and long period.In this study,the reinforcement cage is assumed to be an electrode,which is powered,and the potential difference between the ground surface and the reinforcement cage is tested and compared with the standard reinforcement cage potential difference to see whether its length is in short supply.The method does not need drilling and is easy to operate,providing a new way for field detection.

关 键 词：钢筋笼 长度检测 极电法 电位差 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]