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[1]吕 栋,胡小弟,周永莲,等.基于五维光纤传感器的沥青路面动水压力测量的研究[J].武汉工程大学学报,2016,38(3):268-272.[doi:10. 3969/j. issn. 1674?2869. 2016. 03. 013]
 LYU Dong,HU Xiaodi,ZHOU Yonglian,et al.Measurement of Dynamic Water Pressure of Asphalt Pavement by Five-Dimensional Optical Fiber Sensor[J].Journal of Wuhan Institute of Technology,2016,38(3):268-272.[doi:10. 3969/j. issn. 1674?2869. 2016. 03. 013]
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基于五维光纤传感器的沥青路面动水压力测量的研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
38
期数:
2016年3期
页码:
268-272
栏目:
资源与土木工程
出版日期:
2016-06-22

文章信息/Info

Title:
Measurement of Dynamic Water Pressure of Asphalt Pavement by Five-Dimensional Optical Fiber Sensor
作者:
吕 栋胡小弟周永莲王 富*
武汉工程大学资源与土木工程学院,湖北 武汉 430074
Author(s):
LYU Dong HU Xiaodi ZHOU Yonglian WANG Fu*
School of Resource and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
沥青路面五维光纤传感器动水压力现场测量
Keywords:
asphalt pavement five-dimensional optical fiber sensor dynamic water pressure field measurement
分类号:
U415
DOI:
10. 3969/j. issn. 1674?2869. 2016. 03. 013
文献标志码:
A
摘要:
基于国内外已有的研究成果,介绍了一种自行研发的五维光纤传感器,用于测量沥青路面结构内的动水压力. 该传感器应用光纤传感原理,采用十字梁结构将4个光纤传感器固定,并填充水泥混凝土以稳定及保护传感器. 将五维传感器埋设于路面,并使之处于饱水状态. 当加载车辆以不同速度驶过时,光纤光栅将传递压应变信号,然后由调制解调器接收信号,即可测量出动水压力值. 实测结果发现,动水压力呈正负压交替现象,且最大正压力可达到0.115 MPa,最大负压力达到0.073 MPa. 各方向的动水压力均不相同,但均随车速递增. 关键词:沥
Abstract:
Based on domestic and foreign studies, a method used for measuring the dynamic water pressure of asphalt pavement by five-dimensional optical fiber sensor was proposed. According to the sensing principl, a five dimensional fiber optic sensor was prepared by fixing four optical fiber sensors on a crossbeam. In addition, the concrete cement was used to stabilize and protect the sensor. Test of dynamic water pressure was conducted by embedding the sensor in the asphalt pavement, which was kept in water-saturated state. When the vehicles passed the test section at different speeds, the signals of compressive strain could be transferred to the modulator demodulator by the fiber grating. Therefore, the dynamic water pressure in different directions could be collected during the whole process. It can be concluded that dynamic water pressure presents a continuing exchanging process of positive and negative pressure. The maximum positive pressure is about 0.115 MPa and the maximum negative pressure is about 0.073 MPa. The dynamic water pressure in all directions varies much, but it all increase with the increase of the vehicle speed.

参考文献/References:

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备注/Memo

备注/Memo:
更新日期/Last Update: 2016-06-23