Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum
Soft and broken ground is a common geological condition for subway pit water damage. The complex hydrogeological environment is the main cause of frequent disasters. It relied on the inrush water project of the soft fluid-plastic stratum in the pit of the Shang Yuanmen station in Nanjing. And based...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2648732 |
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| _version_ | 1832567103056510976 |
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| author | Wang Hongbo Qingsong Zhang Liu Rentai Peng Jiang Yankai Liu |
| author_facet | Wang Hongbo Qingsong Zhang Liu Rentai Peng Jiang Yankai Liu |
| author_sort | Wang Hongbo |
| collection | DOAJ |
| description | Soft and broken ground is a common geological condition for subway pit water damage. The complex hydrogeological environment is the main cause of frequent disasters. It relied on the inrush water project of the soft fluid-plastic stratum in the pit of the Shang Yuanmen station in Nanjing. And based on the geological data and the actual site of the project, the station was evaluated for hazards and analysis of major and difficult points. Combined with a variety of geophysical exploration methods, the source of water in the foundation pit and the key areas for pulp reinforcement was obtained. Based on field tests and indoor tests of grouting reinforcement, the parameters before and after grouting reinforcement were analyzed. The effect of material proportioning and grouting pressure on the parameters of stratum reinforcement was studied. It revealed the effect of the behavioral mechanism of material properties and grouting pressure on different mechanical indexes. It creatively proposes a localized controlled grouting process and uses COMSOL modeling to explain its reinforcement mechanism. In addition, foundation pits applied a full set of monitoring system. Finally, a complete set of comprehensive control methods were formed for water inrush in soft fluid-plastic stratum of complex urban strata. Then, the methods are implemented at the project site. Practice has proved that this method successfully seals the inrush water and reinforces foundation pits while ensuring the safety of foundation pits and surrounding construction pipelines. It is hoped that this method can be used as a reference for similar projects. |
| format | Article |
| id | doaj-art-682c02b2775442afbb18879c8ee7b2e3 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-682c02b2775442afbb18879c8ee7b2e32025-02-03T01:02:21ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/26487322648732Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic StratumWang Hongbo0Qingsong Zhang1Liu Rentai2Peng Jiang3Yankai Liu4Geotechnical 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, ChinaSoft and broken ground is a common geological condition for subway pit water damage. The complex hydrogeological environment is the main cause of frequent disasters. It relied on the inrush water project of the soft fluid-plastic stratum in the pit of the Shang Yuanmen station in Nanjing. And based on the geological data and the actual site of the project, the station was evaluated for hazards and analysis of major and difficult points. Combined with a variety of geophysical exploration methods, the source of water in the foundation pit and the key areas for pulp reinforcement was obtained. Based on field tests and indoor tests of grouting reinforcement, the parameters before and after grouting reinforcement were analyzed. The effect of material proportioning and grouting pressure on the parameters of stratum reinforcement was studied. It revealed the effect of the behavioral mechanism of material properties and grouting pressure on different mechanical indexes. It creatively proposes a localized controlled grouting process and uses COMSOL modeling to explain its reinforcement mechanism. In addition, foundation pits applied a full set of monitoring system. Finally, a complete set of comprehensive control methods were formed for water inrush in soft fluid-plastic stratum of complex urban strata. Then, the methods are implemented at the project site. Practice has proved that this method successfully seals the inrush water and reinforces foundation pits while ensuring the safety of foundation pits and surrounding construction pipelines. It is hoped that this method can be used as a reference for similar projects.http://dx.doi.org/10.1155/2019/2648732 |
| spellingShingle | Wang Hongbo Qingsong Zhang Liu Rentai Peng Jiang Yankai Liu Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum Advances in Civil Engineering |
| title | Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum |
| title_full | Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum |
| title_fullStr | Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum |
| title_full_unstemmed | Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum |
| title_short | Research on Disaster-Control Method of Metro Station in Soft Fluid-Plastic Stratum |
| title_sort | research on disaster control method of metro station in soft fluid plastic stratum |
| url | http://dx.doi.org/10.1155/2019/2648732 |
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