摘要
与普通光纤布拉格光栅(FBG)应变传感器相比,低温敏FBG应变传感器对温度灵敏性低、对应变灵敏性高。故将低温敏FBG应变传感器应用于静压PHC管桩贯入过程中,监测了PHC管桩静压贯入过程中的桩身应力、桩端阻力和桩侧摩阻力的变化。实验结果表明:低温敏FBG应变传感器可以较好地对静压PHC管桩贯入过程进行监测,为静压PHC管桩贯入过程监测及分析提供了新的测试器件。
Compared to common fiber Bragg grating （FBG） strain sensor, the FBG strain sensor with low temperature sensitivity has low sensitivity to temperature and high sensitivity to strain. We apply the FBG strain sensors with low temperature sensitivity to static pressure PHC pipe pile penetration test, and monitor the variations of force of pile shaft, toe resistance of pile, and side resistance of pile curing the static pressure penetration of the PHC pipe pile. The experimental results indicate that application of FBG sensor with low temperature sensitivity on monitoring static pressure PHC pipe pile during penetration iprocess is suitable, which provides a new testing device for monitoring and analyzing on static pressure PHC pile pile during penetration process.
作者
王永洪
张明义
张春巍
白晓宇
刘倩
Wang Yonghong;Zhang Mingyi;Zhang Chunwei;Bai Xiaoyu;Liu Oian(School of Civil Engineering, Qingdao University of Technology, Qingdao, Shandong 266033, China;Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone Qingdao University of Technology, Qingdao, Shandong 266033, China;~ Shenzhen Jian Ce Co., Ltd., Shenzhen, Guangzhou 618061, Chin)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第4期61-67,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金(51778312)
山东省重点研发计划(GG201703200019)
山东省自然科学基金青年基金(ZR2016EEP06)
关键词
传感器
低温敏
FBG应变传感器
静压PHC管桩
贯入实验
sensors
low temperature sensitivity
fiber Bragg grating strain sensor
static pressure PHC pipe pile
penetration test
