BOTDR分布式光纤传感技术在桩基测试中的应用研究  

Application of Brillouin Scattering-based Distributed Optical Fiber Sensing Technology on Pile Foundation Test

作　　者：黄晓维 郑建国 于永堂 刘争宏 张龙 Huang Xiaowei;Zheng Jianguo;Yu Yongtang;Liu Zhenghong;Zhang Long(China JK Research Institute of Engineering Investigation and Design,Co.,Ltd.,Shaanxi Key Laboratory for the Property and Treat-ment of Special Soil and Rock,Xi'an 710043,Shaanxi,China)

机构地区：[1]机械工业勘察设计研究院有限公司陕西省特殊岩土性质与处理重点实验室,陕西西安710043

出　　处：《岩土工程技术》2021年第5期281-285,293,共6页Geotechnical Engineering Technique

基　　金：国家自然科学基金(41790442);陕西省科技统筹创新工程计划(2016KTZDSF04-05-01);陕西省“三秦学者”创新团队支持计划(2013KCT-13)。

摘　　要：对国内外BOTDR分布式传感光纤在桩基测试中的研究进展进行总结,包括BOTDR技术原理、仪器设备、安装工艺和实施步骤、数据采集与处理、测试结果分析等。对比分析BOTDR分布式光纤传感技术在常用预制桩和钻孔灌注桩中的桩基测试工艺流程,总结桩身应力应变参数测试结果,结合工程应用进行了简单评述,并阐述未来研究的发展方向。Recent advances of BOTDR distributed sensing fiber in pile foundation test are summarized,including the principle,equipment,installation and implementation,data collecting and processing,and results analysis of BOTDR.The test technique and pro-cedure of the most frequently used prefabricated and bored piles are compared and analyzed,as well as the results acquired.Combined with engineering application,a brief comment is made,and further research topics are suggested.

关 键 词：BOTDR 分布式光纤 预制桩 钻孔灌注桩 桩基测试 

分 类 号：TU753.3[建筑科学—建筑技术科学]