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Laser & Optoelectronics Progress, Volume. 55, Issue 5, 050606(2018)

Application of Enhancement Micro FBG Strain Sensor in Model Experiment of Static Pressure Precast Pile

Yonghong Wang1,2、1; 2; , Mingyi Zhang1,2、1; 2; , Chunwei Zhang1,2、1; 2; , and Xiaoyu Bai1,2、1; 2;
Author Affiliations
  • 1 School of Civil Engineering, Qingdao Technological University, Qingdao, Shandong 266033, China
  • 2 Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao Technological University, Qingdao, Shandong 266033, China
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    AbstractGet PDF(in Chinese)
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    Figures & Tables(8)
    Measurement principle of quasi-distributed FBG

    Fig. 1. Measurement principle of quasi-distributed FBG

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    Calibration test results of the FBG sensor and fitting curves. (a) FBG 1; (b) FBG 2; (c) FBG 3

    Fig. 2. Calibration test results of the FBG sensor and fitting curves. (a) FBG 1; (b) FBG 2; (c) FBG 3

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    Structure schematic diagram of enhancement micro FBG strain sensor

    Fig. 3. Structure schematic diagram of enhancement micro FBG strain sensor

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    Series FBG strain sensors

    Fig. 4. Series FBG strain sensors

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    Model pile and installation of FBG strain sensors

    Fig. 5. Model pile and installation of FBG strain sensors

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    Pressed pile process

    Fig. 6. Pressed pile process

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    Axial force of pile shaft versus embedded depth. (a) FBG 1, FBG 2, FBG 3; (b) FBG 4, FBG 5, FBG 6

    Fig. 7. Axial force of pile shaft versus embedded depth. (a) FBG 1, FBG 2, FBG 3; (b) FBG 4, FBG 5, FBG 6

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    Profiles of side friction of pile with embedded depth. (a) FBG 1, FBG 2, FBG 3; (b) FBG 4, FBG 5, FBG 6

    Fig. 8. Profiles of side friction of pile with embedded depth. (a) FBG 1, FBG 2, FBG 3; (b) FBG 4, FBG 5, FBG 6

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    Yonghong Wang, Mingyi Zhang, Chunwei Zhang, Xiaoyu Bai. Application of Enhancement Micro FBG Strain Sensor in Model Experiment of Static Pressure Precast Pile[J]. Laser & Optoelectronics Progress, 2018, 55(5): 050606

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Nov. 5, 2017

    Accepted: --

    Published Online: Sep. 11, 2018

    The Author Email: Wang Yonghong (hong7986@163.com)

    DOI:10.3788/LOP55.050606

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology