Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water
Based on the Ciqu station project of Beijing Metro Line 17, this paper studies the influence of metro proximity construction in confined water stratum on the existing station, and puts forward relevant deformation control measures to solve the technical problem of new station zero distance under the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/12/5887 |
| _version_ | 1797490368028082176 |
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| author | Mingli Huang Qiaofeng Shen Chuanyun Zhang Zhaohui Meng |
| author_facet | Mingli Huang Qiaofeng Shen Chuanyun Zhang Zhaohui Meng |
| author_sort | Mingli Huang |
| collection | DOAJ |
| description | Based on the Ciqu station project of Beijing Metro Line 17, this paper studies the influence of metro proximity construction in confined water stratum on the existing station, and puts forward relevant deformation control measures to solve the technical problem of new station zero distance under the complex geological conditions. Based on the systematic study of decompression and precipitation, embedment depth of ground wall and ground load of existing station, it is found that the deformation of existing station can be well controlled by taking precise precipitation, appropriately increasing embedment depth of ground wall and ground load of existing station at the same time, so as to achieve safe construction. Studies have shown that in the case of the existing station structure with deformation joints, the internal force of the structure is reduced by 58% compared with that of the station without deformation joints, The allowable deformation of existing station structure with reserved deformation joints is more than 3 times higher than that without reserved deformation joints, The existence of deformation joints improves the anti-damage ability of existing stations. |
| first_indexed | 2024-03-10T00:32:00Z |
| format | Article |
| id | doaj.art-e79ac781f5954b0abcc74a2dad743231 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:32:00Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e79ac781f5954b0abcc74a2dad7432312023-11-23T15:24:05ZengMDPI AGApplied Sciences2076-34172022-06-011212588710.3390/app12125887Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined WaterMingli Huang0Qiaofeng Shen1Chuanyun Zhang2Zhaohui Meng3Key Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaFirst Department of Engineering, Beijing Municipal Construction Group Co., Ltd., Beijing 100176, ChinaBased on the Ciqu station project of Beijing Metro Line 17, this paper studies the influence of metro proximity construction in confined water stratum on the existing station, and puts forward relevant deformation control measures to solve the technical problem of new station zero distance under the complex geological conditions. Based on the systematic study of decompression and precipitation, embedment depth of ground wall and ground load of existing station, it is found that the deformation of existing station can be well controlled by taking precise precipitation, appropriately increasing embedment depth of ground wall and ground load of existing station at the same time, so as to achieve safe construction. Studies have shown that in the case of the existing station structure with deformation joints, the internal force of the structure is reduced by 58% compared with that of the station without deformation joints, The allowable deformation of existing station structure with reserved deformation joints is more than 3 times higher than that without reserved deformation joints, The existence of deformation joints improves the anti-damage ability of existing stations.https://www.mdpi.com/2076-3417/12/12/5887multi-layer confined waterdeformation jointsundercrossing constructionfloating controlexisting station |
| spellingShingle | Mingli Huang Qiaofeng Shen Chuanyun Zhang Zhaohui Meng Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water Applied Sciences multi-layer confined water deformation joints undercrossing construction floating control existing station |
| title | Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water |
| title_full | Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water |
| title_fullStr | Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water |
| title_full_unstemmed | Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water |
| title_short | Study on the Influence of Construction Undercrossing Existing Station at Zero Distance in Confined Water |
| title_sort | study on the influence of construction undercrossing existing station at zero distance in confined water |
| topic | multi-layer confined water deformation joints undercrossing construction floating control existing station |
| url | https://www.mdpi.com/2076-3417/12/12/5887 |
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