静压桩贯入试验增敏型FBG传感器的研制及应用
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国家自然科学基金资助项目(51778312,41502304);山东省重点研发计划资助项目(GG201703200019);山东省自然科学基金资助项目(ZR2016EEP06)

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Development and Application of FBG Sensors With Enhanced Sensitivity for Jacked Pile Driving Test
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    摘要:

    介绍了光纤光栅的基本原理及优点,设计了基于光纤光栅技术的增敏型应变传感器,并对其工作特性进行了分析。应用增敏型光纤光栅传感器,测试了静压桩贯入过程中模型桩的桩身应力变化。试验结果表明,使用光纤光栅传感器对模型试验中静压桩贯入过程桩身应力监测时需进行增敏。增敏型光纤光栅传感器为模型试验中静压桩贯入过程监测及分析提供了一种新的工具,是监测模型桩静压贯入过程的理想器件。

    Abstract:

    The basic principle and advantages of fiber grating are introduced. A strain sensor with enhanced sensitivity is designed based on the fiber Bragg grating (FBG) technology and the operating characteristics are analyzed. The stress variations of the model pile during jacked pile driving process are tested by FBG sensor with enhanced sensitivity. The results indicate that the sensitivity of FBG sensor for the model test during jacked pile driving process should be enhanced. The FBG sensor with enhanced sensitivity provides a new tool for monitoring and analyzing the jacked pile driving process during the model test,and is an ideal device for monitoring the jacked pile driving process of the model pile.

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王永洪,张明义,张春巍,白晓宇,桑松魁.静压桩贯入试验增敏型FBG传感器的研制及应用[J].压电与声光,2018,40(1):56-59. WANG Yonghong, ZHANG Mingyi, ZHANG Chunwei, BAI Xiaoyu, SANG Songkui. Development and Application of FBG Sensors With Enhanced Sensitivity for Jacked Pile Driving Test[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2018-02-08
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