Citation:
Yang Yuyao, Hong Chengyu, Wang Lei. Study on Measurement Method of Small Deformation of EmbankmentBased on FDM and FBG Technology. Journal of Information Technologyin Civil Engineering and Architecture,
2018, 10(6): 107-112.
doi: 10.16670/j.cnki.cn11-5823/tu.2018.06.18
2018, 10(6): 107-112. doi: 10.16670/j.cnki.cn11-5823/tu.2018.06.18
Study on Measurement Method of Small Deformation of EmbankmentBased on FDM and FBG Technology
| 1. | College of Urban Rail Transit, Shanghai University of Engineering Science, Shanghai 201600, China |
| 2. | Department of Civil Engineering, Shanghai University, Shanghai 200444, China |
Based on the railway embankment health monitoring, this study developed an embankment small deformation monitoring system based on FDM (Fused Deposition Modeling) and FBG (Fiber Bragg Grating) technology. Using FDM technology and FBG sensing technology to design the FBG sensor monitoring model with package and anchor plate, the relationship between load and soil displacement can be obtained by calibration test. The results show that the displacement has a good linear relationship with the load, and the correlation coefficient reaches 0.99. The test measured a maximum displacement of 0.25 mm, a minimum displacement of 0.05 mm, a sensor sensitivity of 4 nm/mm, and a minimum resolution of 0.62 μm. The feasibility of the sensor is tested by two test conditions, including monitoring the displacement of the embankment under static and dynamic loads. The monitoring data under static load shows that the wavelength and displacement increase stepwise with time, and the minimum displacement of the embankment is successfully collected, which reaches 0.004 mm. The dynamic load monitoring test results show that the sensor can quickly reflect the vertical pressure generated by the vehicle model load.
| [1] |
Wonseok CHUNG, Donghoon KANG. Full-scale test of a concrete box girder using FBG sensing[J]. Engineening Structures, 2008, 30: 643-652.doi: 10.1016/j.engstruct.2007.05.003 |
| [2] |
肖裕民, 黄仁富.隧道围岩体内位移监测分析[J].西部交通科技, 2009, 28(10): 93-96.doi: 10.3969/j.issn.1673-4874.2009.10.023 |
| [3] |
陈伟民.大跨径拱桥多维位移的光电组合监测技术研究[D].重庆: 重庆大学, 2008. |
| [4] |
吕聪儒, 楼云, 张鹏.埋入式激光沉降仪测量法及工程应用[J].水利水电科技进展, 2014, 34(S2): 42-44.34(S2): 42-44. |
| [5] |
闫宏业, 蔡德钩, 姚建平, 等.装配式分层沉降观测装置在路基沉降观测中的应用[J].铁道建筑, 2008(6): 83-85.doi: 10.3969/j.issn.1003-1995.2008.06.029 |
| [6] |
李光伟, 董林玺.基于MEMS加速度传感器的位移检测系统[J].传感器与微系统, 2014, (7):79-81.doi: 10.3969/j.issn.1000-9787.2014.07.023 |
| [7] |
张斌, 冯其波, 杨靖, 等.路基沉降远程自动监测系统的研发[J].中国铁道科学, 2012, 33(1): 139-144.doi: 10.3969/j.issn.1001-4632.2012.01.22 |
| [8] |
梁敏富, 方新秋, 薛广哲, 等.光纤光栅测力锚杆的标定试验[J].煤矿安全, 2015, 46(1): 44-46.doi: 10.3969/j.issn.1008-4495.2015.01.012 |
| [9] |
李伟, 李川.双悬臂梁式光纤Bragg光栅位移传感器[J].微计算机信息, 2011, 27(9): 52-53.doi: 10.3969/j.issn.2095-6835.2011.09.022 |
| [10] |
丁腾蛟.基于悬臂结构的大量程光纤Bragg光栅位移传感器[D].武汉: 武汉理工大学, 2012. |
| [11] |
尹兴彬, 马伟宏, 曹慧, 等.一种高精度光纤光栅位移传感器设计研究[J].科技信息, 2012(6):170-171. |
| [12] |
LI Hongnan, LI Dongsheng and WANG Suyan. Study and application of health monitoring by fiber optic sensors in civil engineering[A], ASME, Pressure Vessels and Piping Division, 2003, 468: 217-224. |
| [13] |
B.CULSHAW, Smart Structures and Materials[M]. London:Artech House Publishiers. 1996:2~3. |
Metrics
- PDF Downloads(23)
- Abstract views(2433)
- HTML views(850)
