光纤测温技术在断桩检测模型试验中的应用  

Application of optical fiber temperature measurement technology in model test of broken pile detection

作　　者：范萌[1,2] 刘永莉[1] 肖衡林[1] 雷文凯[3] 

机构地区：[1]湖北工业大学土木工程与建筑学院,湖北武汉430064 [2]厦门市市政工程设计院有限公司,福建厦门361000 [3]贺州学院建筑工程学院,广西贺州542899

出　　处：《传感器与微系统》2015年第12期153-155,160,共4页Transducer and Microsystem Technologies

基　　金：教育部新世纪优秀人才支持计划资助项目(NCET-11-0962);湖北省桥梁安全监控技术及装备工程技术研究中心开放基金资助项目(QLZX2014003);湖北工业大学高层次人才项目(BSQD12054);国家自然科学基金资助项目(51578219)

摘　　要：制作了夹泥断桩模型,采用不同功率对埋置于模型桩中光纤进行加热,连续监测了光纤温升情况,研究了桩中光纤温升规律,结果表明:模型桩中夹泥段温升明显高于正常桩段,不同功率下温差不同;研究了加热功率大小对光纤温升的影响,通过分析发现温升与加热功率具有良好线性关系。对光纤测温技术用于桩基断桩缺陷检测做了一定探讨,完善了光纤测温技术在桩基缺陷检测中的应用研究。The model of broken pile with intercalated mud is designed and the optical fiber of pile model is heated with different power,optical fiber temperature rising in pile is monitored to study the rule of temperature rising,experimental results show that the temperature rising of intercalated mud pile is larger than normal pile and the temperature difference is different in power; relationship between heating power and temperature rising is researched and good linear relationship is discovered. Application of optical fiber temperature measurement technology in defect detection of broken pile is investigated and the application research of this technology in defective pile detection has been perfected.

关 键 词：夹泥桩 光纤测温技术 断桩 温升 加热功率 

分 类 号：TU473[建筑科学—结构工程]