Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization
Most of the existing electrical-resistivity-based ahead prospecting methods in tunnel use only the tunnel cavity and tunnel face space to locate the water-bearing structures in front of the tunnel. However, due to the limitation of the narrow available space for arranging electrodes in tunnel, this...
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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: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/1974451 |
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| author | Wei Zhou Lichao Nie Yongheng Zhang Yonghao Pang Zhao Dong Zhimin An Zhengyu Liu Chuanyi Ma |
| author_facet | Wei Zhou Lichao Nie Yongheng Zhang Yonghao Pang Zhao Dong Zhimin An Zhengyu Liu Chuanyi Ma |
| author_sort | Wei Zhou |
| collection | DOAJ |
| description | Most of the existing electrical-resistivity-based ahead prospecting methods in tunnel use only the tunnel cavity and tunnel face space to locate the water-bearing structures in front of the tunnel. However, due to the limitation of the narrow available space for arranging electrodes in tunnel, this kind of method is difficult to achieve more accurate image for water-bearing structures. The cross-hole electrical resistivity tomography (CHERT) and borehole-to-surface electrical resistivity tomography (BSERT) methods using borehole space have been proved effective means to achieve better images of deep anomalies on the surface. In this paper, the tunnel-face and borehole ERI (TBERI) method in tunnels was studied. To less affect the construction progress, the pole-pole configuration using a single borehole was studied in this paper. Moreover, the configuration is optimized based on the block weighted CR optimization strategy. After considering the data combination, an effective measurement configuration suitable for TBERI detection was formed. To accelerate calculation, some redundant data are removed from the obtained data after proposed block weighted optimization is conducted. By adopting the proposed configuration, the abnormal objects in the target area in the inversion are more accurate. The effectiveness of proposed configuration is verified by numerical simulation. |
| format | Article |
| id | doaj-art-251a216bfef34b119500ac50b72eddb6 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-251a216bfef34b119500ac50b72eddb62025-02-03T06:10:46ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/19744511974451Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its OptimizationWei Zhou0Lichao Nie1Yongheng Zhang2Yonghao Pang3Zhao Dong4Zhimin An5Zhengyu Liu6Chuanyi Ma7Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, ChinaShandong Transportation Planning and Design Institute Co., Ltd., Jinan 250031, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, ChinaShandong Hi-Speed Group Co., Ltd., Jinan 250104, ChinaMost of the existing electrical-resistivity-based ahead prospecting methods in tunnel use only the tunnel cavity and tunnel face space to locate the water-bearing structures in front of the tunnel. However, due to the limitation of the narrow available space for arranging electrodes in tunnel, this kind of method is difficult to achieve more accurate image for water-bearing structures. The cross-hole electrical resistivity tomography (CHERT) and borehole-to-surface electrical resistivity tomography (BSERT) methods using borehole space have been proved effective means to achieve better images of deep anomalies on the surface. In this paper, the tunnel-face and borehole ERI (TBERI) method in tunnels was studied. To less affect the construction progress, the pole-pole configuration using a single borehole was studied in this paper. Moreover, the configuration is optimized based on the block weighted CR optimization strategy. After considering the data combination, an effective measurement configuration suitable for TBERI detection was formed. To accelerate calculation, some redundant data are removed from the obtained data after proposed block weighted optimization is conducted. By adopting the proposed configuration, the abnormal objects in the target area in the inversion are more accurate. The effectiveness of proposed configuration is verified by numerical simulation.http://dx.doi.org/10.1155/2021/1974451 |
| spellingShingle | Wei Zhou Lichao Nie Yongheng Zhang Yonghao Pang Zhao Dong Zhimin An Zhengyu Liu Chuanyi Ma Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization Geofluids |
| title | Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization |
| title_full | Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization |
| title_fullStr | Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization |
| title_full_unstemmed | Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization |
| title_short | Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization |
| title_sort | study of tunnel face to borehole eri tberi measurement configurations and its optimization |
| url | http://dx.doi.org/10.1155/2021/1974451 |
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