Research on Fiber Optic Array Monitoring System for Deformation Field of Frozen Soil Subgrade
Citation
宋竹兵 (Song Zhubing), 李震 (Li Zhen), 朱宝山 (Zhu Baoshan), 赵力国 (Zhao Liguo), 周春豪 (Zhou Chunhao), & 袁堃 (Yuan Kun). (2021). 冻土路基变形场光纤阵列监测体系研究 [Research on Fiber Optic Array Monitoring System for Deformation Field of Frozen Soil Subgrade]. 中外公路 (China & Foreign Highway), 41(5), 22-62.
Keywords
- 冻土路基 / Frozen Soil Subgrade
- 变形场监测 / Deformation Field Monitoring
- 光纤阵列 / Fiber Optic Array
- 布拉格光栅光纤传感技术 / Bragg Grating Fiber Optic Sensing Technology
- 融沉变形 / Thaw Settlement Deformation
- 局部变位 / Local Displacement
- 纵向形态变化 / Longitudinal Shape Change
- 自动化功能 / Automation Function
- 高精度 / High Precision
- 高韧性 / High Toughness
- 大变形 / Large Deformation
- 病害监测体系 / Disease Monitoring System
- 光栅光纤位移阵列传感器 / Fiber Bragg Grating Displacement Array Sensor
Brief
The article focuses on the development of an automated fiber optic array monitoring system utilizing Bragg grating sensors for high-precision measurement and prediction of deformation in frozen soil roadbeds, addressing the challenges of large and uneven displacements in harsh high-altitude and cold regions.
Summary
This article details the development of an automated fiber optic array monitoring system using Bragg grating sensors for the high-precision measurement and prediction of deformation in frozen soil roadbeds. The system is designed to address the challenges of large and uneven displacements in the harsh high-altitude and cold regions of the Qinghai-Tibet Plateau. The research includes the design of fiber optic displacement array sensors, the use of Kriging spatial interpolation for deformation field prediction, and the optimization of sensor array layout with a recommended transverse spacing of 2m and longitudinal spacing of 4-6m. The proposed system aims for automated, non-contact, all-time domain monitoring and cloud-based identification of uneven settlement disasters, offering a solution for the difficulties of data collection in remote and severe environments.
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