Application of distributed optical fiber sensing technique in pile foundation monitoring

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Guo, Zhenshan^1 ; Zhao, Ziyang^1

Shanxi Key Laboratory of Geotechnical and Under-Ground Engineering, Shanxi Transportation Research Institute, Taiyuan, Shanxi

030006, China^1

关键词: Construction process;    Continuous monitoring;    Distributed optical fiber;    Distributed optical fiber sensing;    Foundation engineering;    Monitoring techniques;    Stress and deformation;    Transmission distances;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052074/pdf
DOI  :  10.1088/1755-1315/189/5/052074

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Compared with traditional point monitoring technique, distributed optical fiber sensing technique, with the advantages of long transmission distance, good durability, high precision and continuous monitoring, has been used widely in slope, tunnel and pile foundation engineering et al. Based on a bridge pile foundation project, the distributed optical fiber was used to monitor the stress and deformation of pile foundation during the construction process. Through comparing the results with traditional point monitoring technique, it shows that the distributed optical fiber sensing technique is of high accuracy and with good consistent with the traditional monitoring technique.