Testing Mechanical Properties of Rock Bolt under Different Supports Using Fiber Bragg Grating Technology
Abstract
:1. Introduction
2. FBG Sensor
2.1. Advantages of FBG in Bolt Monitoring
2.2. Brief Introduction to the FBG Sensor
2.3. FBG Sensor Installation
2.4. Data Interpretation
3. Rock Bolt Mechanism and Experiment Condition Design
3.1. Action Mechanism of the Prestressed Anchor
3.2. Mechanism of the Non-Prestressed Anchor
3.3. Design of Experiment Condition
4. Experimental Materials and Processes
5. Experimental Results and Analyses
6. Conclusions and Future Work
Author Contributions
Funding
Conflicts of Interest
References
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Name | Applied Load/kN | FBG1 | FBG2 | FBG3 | FBG4 | Average | |
---|---|---|---|---|---|---|---|
Point Number | |||||||
Active | 5.22 ± 0.09 | 5.09 ± 0.05 | 5.00 ± 0.09 | 5.11 ± 0.03 | 5.24 ± 0.06 | 5.11 ± 0.05 | |
10.14 ± 0.08 | 9.88 ± 0.16 | 9.69 ± 0.16 | 9.90 ± 0.10 | 10.18 ± 0.10 | 9.91 ± 0.13 | ||
15.27 ± 0.14 | 15.17 ± 0.04 | 14.81 ± 0.14 | 15.54 ± 0.11 | 15.89 ± 0.18 | 15.35 ± 0.12 | ||
19.74 ± 0.16 | 19.99 ± 0.08 | 19.20 ± 0.44 | 19.81 ± 0.12 | 20.10 ± 0.17 | 19.78 ± 0.20 | ||
Passive | 5.05 ± 0.15 | 6.23 ± 0.25 | 5.16 ± 0.24 | 5.23 ± 0.28 | 5.10 ± 0.11 | 5.43 ± 0.22 | |
10.11 ± 0.12 | 12.66 ± 0.13 | 10.01 ± 0.21 | 10.68 ± 0.10 | 10.58 ± 0.22 | 10.98 ± 0.16 | ||
15.14 ± 0.13 | 17.50 ± 0.27 | 14.58 ± 0.59 | 15.55 ± 0.51 | 15.95 ± 0.46 | 15.90 ± 0.46 | ||
20.08 ± 0.63 | 22.03 ± 0.52 | 19.88 ± 0.87 | 19.72 ± 0.78 | 20.34 ± 0.78 | 20.49 ± 0.74 | ||
25.12 ± 0.32 | 26.58 ± 0.36 | 25.33 ± 0.67 | 25.56 ± 0.39 | 24.99 ± 0.51 | 25.62 ± 0.48 | ||
30.33 ± 0.34 | 31.44 ± 0.39 | 30.53 ± 0.68 | 30.22 ± 0.44 | 30.15 ± 0.57 | 30.59 ± 0.52 | ||
34.85 ± 0.35 | 35.35 ± 0.72 | 35.11 ± 0.23 | 34.77 ± 0.61 | 34.87 ± 0.51 | 35.03 ± 0.51 | ||
40.22 ± 0.34 | 40.55 ± 0.48 | 40.11 ± 0.44 | 40.03 ± 0.31 | 39.98 ± 0.30 | 40.17 ± 0.38 |
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Guo, X.; Wang, B.; Ma, Z.; Wang, Z. Testing Mechanical Properties of Rock Bolt under Different Supports Using Fiber Bragg Grating Technology. Sensors 2019, 19, 4098. https://doi.org/10.3390/s19194098
Guo X, Wang B, Ma Z, Wang Z. Testing Mechanical Properties of Rock Bolt under Different Supports Using Fiber Bragg Grating Technology. Sensors. 2019; 19(19):4098. https://doi.org/10.3390/s19194098
Chicago/Turabian StyleGuo, Xinxin, Bo Wang, Zhenwang Ma, and Zhenyu Wang. 2019. "Testing Mechanical Properties of Rock Bolt under Different Supports Using Fiber Bragg Grating Technology" Sensors 19, no. 19: 4098. https://doi.org/10.3390/s19194098