Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System
With the rapid construction of metro tunnels in many metropolises, a fast and convenient solution to capture tunnel deformation is desired by civil engineers. This contribution reports an automatic and wireless tunnel deformation monitoring system using ultrasonic transducers. A processing algorithm...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/17/8/1758 |
| _version_ | 1811279309795491840 |
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| author | Dong-Sheng Xu Yu-Meng Zhao Hua-Bei Liu Hong-Hu Zhu |
| author_facet | Dong-Sheng Xu Yu-Meng Zhao Hua-Bei Liu Hong-Hu Zhu |
| author_sort | Dong-Sheng Xu |
| collection | DOAJ |
| description | With the rapid construction of metro tunnels in many metropolises, a fast and convenient solution to capture tunnel deformation is desired by civil engineers. This contribution reports an automatic and wireless tunnel deformation monitoring system using ultrasonic transducers. A processing algorithm of the redundant ultrasonic information (RUI) approach is proposed to improve measurement accuracy. The feasibility of this tunnel deformation monitoring method is carefully examined with various probe angles, distances, and surrounding temperature variations. The results indicate that high accuracy can be achieved with different coefficients for various probe angles and sensor distances, as well as temperatures. In addition, a physical tunnel model was fabricated to verify the new processing algorithm of the RUI approach for a wireless tunnel deformation sensing system. The test results reveal that average measurement errors decreased from 7% to 3.75% using the RUI approach. Therefore, it can be concluded that the proposed approach is well suited to the automatic detection of critical conditions such as large deformation events in metro tunnels. |
| first_indexed | 2024-04-13T00:52:23Z |
| format | Article |
| id | doaj.art-96e58742954e4a29986a2303ed13d5a7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T00:52:23Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-96e58742954e4a29986a2303ed13d5a72022-12-22T03:09:51ZengMDPI AGSensors1424-82202017-08-01178175810.3390/s17081758s17081758Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based SystemDong-Sheng Xu0Yu-Meng Zhao1Hua-Bei Liu2Hong-Hu Zhu3School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan 430074, ChinaSchool of Civil Engineering and Mechanics, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan 430074, ChinaSchool of Civil Engineering and Mechanics, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan 430074, ChinaSchool of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, ChinaWith the rapid construction of metro tunnels in many metropolises, a fast and convenient solution to capture tunnel deformation is desired by civil engineers. This contribution reports an automatic and wireless tunnel deformation monitoring system using ultrasonic transducers. A processing algorithm of the redundant ultrasonic information (RUI) approach is proposed to improve measurement accuracy. The feasibility of this tunnel deformation monitoring method is carefully examined with various probe angles, distances, and surrounding temperature variations. The results indicate that high accuracy can be achieved with different coefficients for various probe angles and sensor distances, as well as temperatures. In addition, a physical tunnel model was fabricated to verify the new processing algorithm of the RUI approach for a wireless tunnel deformation sensing system. The test results reveal that average measurement errors decreased from 7% to 3.75% using the RUI approach. Therefore, it can be concluded that the proposed approach is well suited to the automatic detection of critical conditions such as large deformation events in metro tunnels.https://www.mdpi.com/1424-8220/17/8/1758tunnel deformation measurementultrasonicwirelessredundant ultrasonic information |
| spellingShingle | Dong-Sheng Xu Yu-Meng Zhao Hua-Bei Liu Hong-Hu Zhu Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System Sensors tunnel deformation measurement ultrasonic wireless redundant ultrasonic information |
| title | Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System |
| title_full | Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System |
| title_fullStr | Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System |
| title_full_unstemmed | Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System |
| title_short | Deformation Monitoring of Metro Tunnel with a New Ultrasonic-Based System |
| title_sort | deformation monitoring of metro tunnel with a new ultrasonic based system |
| topic | tunnel deformation measurement ultrasonic wireless redundant ultrasonic information |
| url | https://www.mdpi.com/1424-8220/17/8/1758 |
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