Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures
Water leaking into metro segments is related directly to the presence of underground water. However, to date, the underground confined water channels formed by metro underpass reinforcement structures have not been considered as causes of the problem. In the present study, based on field investigati...
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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/10.1155/2021/6699252 |
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| author | Xiao Liang Taiyue Qi Zhiyi Jin Pengtao Chen Bo Lei Wangping Qian Xianyu Wang |
| author_facet | Xiao Liang Taiyue Qi Zhiyi Jin Pengtao Chen Bo Lei Wangping Qian Xianyu Wang |
| author_sort | Xiao Liang |
| collection | DOAJ |
| description | Water leaking into metro segments is related directly to the presence of underground water. However, to date, the underground confined water channels formed by metro underpass reinforcement structures have not been considered as causes of the problem. In the present study, based on field investigations and geological data, confined water is identified as the source of segment leakage on Line 5 of Hangzhou Metro in China. It is then hypothesized that the problem stems from an underground confined water channel formed under the reinforced structure of the subway. Numerical simulations predict a settlement difference of 8–10 mm between the reinforcement area and the weak strata, and field monitoring data show this difference to be 8.62 mm. This consistency between the numerical simulations and the field measurements verifies the hypothesis. Finally, given the causes of underground confined water channels, corresponding technical measures such as piecewise secondary grouting are proposed to cut them off and avoid metro-segment leakage. The present research results contribute to the causes of and the laws governing the metro-segment leakage that occurs at subway stations and other reinforced structures. |
| format | Article |
| id | doaj-art-4438e9f12c1943d7b0dc308674cca1f4 |
| 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-4438e9f12c1943d7b0dc308674cca1f42025-02-03T06:46:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66992526699252Investigation of Water Leakage of Metro Segments Caused by Metro Underpass StructuresXiao Liang0Taiyue Qi1Zhiyi Jin2Pengtao Chen3Bo Lei4Wangping Qian5Xianyu Wang6Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Chengdu, ChinaSchool of Transportation and Civil Engineering, Nantong University, Nantong, ChinaChina Railway Southwest Research Institute Company Limited, Chengdu, ChinaWater leaking into metro segments is related directly to the presence of underground water. However, to date, the underground confined water channels formed by metro underpass reinforcement structures have not been considered as causes of the problem. In the present study, based on field investigations and geological data, confined water is identified as the source of segment leakage on Line 5 of Hangzhou Metro in China. It is then hypothesized that the problem stems from an underground confined water channel formed under the reinforced structure of the subway. Numerical simulations predict a settlement difference of 8–10 mm between the reinforcement area and the weak strata, and field monitoring data show this difference to be 8.62 mm. This consistency between the numerical simulations and the field measurements verifies the hypothesis. Finally, given the causes of underground confined water channels, corresponding technical measures such as piecewise secondary grouting are proposed to cut them off and avoid metro-segment leakage. The present research results contribute to the causes of and the laws governing the metro-segment leakage that occurs at subway stations and other reinforced structures.http://dx.doi.org/10.1155/2021/6699252 |
| spellingShingle | Xiao Liang Taiyue Qi Zhiyi Jin Pengtao Chen Bo Lei Wangping Qian Xianyu Wang Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures Advances in Civil Engineering |
| title | Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures |
| title_full | Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures |
| title_fullStr | Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures |
| title_full_unstemmed | Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures |
| title_short | Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures |
| title_sort | investigation of water leakage of metro segments caused by metro underpass structures |
| url | http://dx.doi.org/10.1155/2021/6699252 |
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