Application of 3D Laser Scanning in Underground Station Cavity Clusters
Given the shortcomings of the tunnel overbreak and underbreak control and primary support sectional area detection such as the single means, large workload, low efficiency, and poor accuracy, the use of three-dimensional laser technology can solve the above problems. Based on the Badaling Tunnel Gre...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/8896363 |
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| _version_ | 1832560040583626752 |
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| author | Li Pinpin Qiu Wenge Cheng Yunjian Lu Feng |
| author_facet | Li Pinpin Qiu Wenge Cheng Yunjian Lu Feng |
| author_sort | Li Pinpin |
| collection | DOAJ |
| description | Given the shortcomings of the tunnel overbreak and underbreak control and primary support sectional area detection such as the single means, large workload, low efficiency, and poor accuracy, the use of three-dimensional laser technology can solve the above problems. Based on the Badaling Tunnel Great Wall underground station of the Beijing-Zhangjiakou Railway, the 3D laser scanning technology is used to analyze the distribution of the tunnel overbreak and underbreak and the sectional area of the primary support, compared with the total station measurement results. The results showed that the layout of the scanning measurement station should consider the requirements of scanning accuracy, control the station length and scanning incidence angle, and minimize the scanning station length to reduce the scanning error. The majority of the tunnel section was in overbreak, with the overbreak area ranging from 6.22 m2 to 13.17 m2and the overbreak rate ranging from 0.283 to 0.598, and the area of underbreak was relatively small; no overexceeded headroom was found in the primary support, and the tunnel vault was not overbreak. The primary support clearance value of the vault is 0∼15 mm, the clearance value of the sidewall is 35 mm∼40 mm, and the sidewall needs to be secondary shotcrete. The difference value between the 3D laser scanning measurement data and the total station measurement data is within 3 mm, which is within the error range, indicating the validity and reliability of the 3D laser measurement result. |
| format | Article |
| id | doaj-art-712f3feeba1c40308fe78b6e220b2728 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-712f3feeba1c40308fe78b6e220b27282025-02-03T01:28:31ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/88963638896363Application of 3D Laser Scanning in Underground Station Cavity ClustersLi Pinpin0Qiu Wenge1Cheng Yunjian2Lu Feng3Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, ChinaSchool of Emergency Science, Xihua University, Chengdu 610039, ChinaGiven the shortcomings of the tunnel overbreak and underbreak control and primary support sectional area detection such as the single means, large workload, low efficiency, and poor accuracy, the use of three-dimensional laser technology can solve the above problems. Based on the Badaling Tunnel Great Wall underground station of the Beijing-Zhangjiakou Railway, the 3D laser scanning technology is used to analyze the distribution of the tunnel overbreak and underbreak and the sectional area of the primary support, compared with the total station measurement results. The results showed that the layout of the scanning measurement station should consider the requirements of scanning accuracy, control the station length and scanning incidence angle, and minimize the scanning station length to reduce the scanning error. The majority of the tunnel section was in overbreak, with the overbreak area ranging from 6.22 m2 to 13.17 m2and the overbreak rate ranging from 0.283 to 0.598, and the area of underbreak was relatively small; no overexceeded headroom was found in the primary support, and the tunnel vault was not overbreak. The primary support clearance value of the vault is 0∼15 mm, the clearance value of the sidewall is 35 mm∼40 mm, and the sidewall needs to be secondary shotcrete. The difference value between the 3D laser scanning measurement data and the total station measurement data is within 3 mm, which is within the error range, indicating the validity and reliability of the 3D laser measurement result.http://dx.doi.org/10.1155/2021/8896363 |
| spellingShingle | Li Pinpin Qiu Wenge Cheng Yunjian Lu Feng Application of 3D Laser Scanning in Underground Station Cavity Clusters Advances in Civil Engineering |
| title | Application of 3D Laser Scanning in Underground Station Cavity Clusters |
| title_full | Application of 3D Laser Scanning in Underground Station Cavity Clusters |
| title_fullStr | Application of 3D Laser Scanning in Underground Station Cavity Clusters |
| title_full_unstemmed | Application of 3D Laser Scanning in Underground Station Cavity Clusters |
| title_short | Application of 3D Laser Scanning in Underground Station Cavity Clusters |
| title_sort | application of 3d laser scanning in underground station cavity clusters |
| url | http://dx.doi.org/10.1155/2021/8896363 |
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