Research on the Application of MEMS Intelligent Sensor in Abnormal Monitoring of Metro Tunnel by Simplified Model Tests
Abstract
:1. Introduction
2. Experimental Design of Tunnel Anomaly Monitoring Based on MEMS
2.1. Test Materials and Grouping
2.2. Tunnel Simulation Scheme
2.2.1. Single Tunnel
2.2.2. Orthogonal Tunnels
3. MEMS Data Processing Method
4. Deformation Characteristics of the Tunnel under Concentrated Load
4.1. Acrylic Pipe Simulated Tunnel
4.2. 304 Steel Pipe Simulated Tunnel
5. Deformation Characteristics of Orthogonal Tunnels under Concentrated Load
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Soil Condition | Load Distribution | Tunnel Form | Tunnel Material | Wall Thickness Grouping |
---|---|---|---|---|
Homogeneous soil layer | Concentrated load | Single tunnel | Acrylic | 3 mm |
2 mm | ||||
1 mm | ||||
Steel | 0.2 mm | |||
0.1 mm | ||||
Cross orthogonal tunnels | Acrylic | 1 mm |
Parameters | Measuring Range | Resolution |
---|---|---|
Acceleration | +16 g | 0.0005 (g/LSB) |
Angular velocity | ±2000°/s | 0.061 (°/s)/(LSB) |
Magnetic field intensity | ±2 Gauss | 0.0667mGauss/LSB |
Pitch, roll angle | X: ±180°, Y: ±90° | 0.1° (Static)/0.5° (Dynamic) |
Heading angle | Z: ±180° | 1° |
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Gao, Y.; Sun, K.; Tian, J.; Wu, X. Research on the Application of MEMS Intelligent Sensor in Abnormal Monitoring of Metro Tunnel by Simplified Model Tests. Micromachines 2022, 13, 1242. https://doi.org/10.3390/mi13081242
Gao Y, Sun K, Tian J, Wu X. Research on the Application of MEMS Intelligent Sensor in Abnormal Monitoring of Metro Tunnel by Simplified Model Tests. Micromachines. 2022; 13(8):1242. https://doi.org/10.3390/mi13081242
Chicago/Turabian StyleGao, Yan, Ketian Sun, Jiayi Tian, and Xiaodong Wu. 2022. "Research on the Application of MEMS Intelligent Sensor in Abnormal Monitoring of Metro Tunnel by Simplified Model Tests" Micromachines 13, no. 8: 1242. https://doi.org/10.3390/mi13081242