Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure
In this study, aiming at the practical application of additional layer excavation technology in the renewal and reconstruction of old urban communities, the influence of different excavation methods on the settlement behavior of existing structures is deeply analyzed through numerical simulation exp...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/12/3848 |
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| author | Xiaotong He Zhibin Zhong Shangheng Huang Baoxian Liu Zhile Shu Wenwu Zhong Kai Cui Lining Zheng Qichao Liu |
| author_facet | Xiaotong He Zhibin Zhong Shangheng Huang Baoxian Liu Zhile Shu Wenwu Zhong Kai Cui Lining Zheng Qichao Liu |
| author_sort | Xiaotong He |
| collection | DOAJ |
| description | In this study, aiming at the practical application of additional layer excavation technology in the renewal and reconstruction of old urban communities, the influence of different excavation methods on the settlement behavior of existing structures is deeply analyzed through numerical simulation experiments. It is found that the frame columns show basin-type settlement in the block layered excavation, basin excavation and central island excavation. The cumulative settlement of the middle column is the largest, and the corner column is the smallest. The settlement phenomenon is mainly concentrated around the frame columns Z6, Z7, Z10 and Z11, and the change law of the cumulative settlement value conforms to the linear function distribution. By defining the cumulative settlement rate (a) as an index to measure the influence degree of the existing structure, it is found that the a value of the middle column is the largest, the side column is the second and the corner column is the smallest, and the a value of block layered excavation is the largest, and the central island excavation is the smallest. Considering the construction period, block layered excavation may be a more appropriate choice. The comparative analysis of the research results and the model experiment results confirms the feasibility of the improved model experiment, provides an important theoretical basis and practical guidance for the renewal and transformation of old urban communities and is of great significance for improving the utilization efficiency and safety of existing buildings. |
| format | Article |
| id | doaj-art-53a365f024454d068917a70cf1b9c2ae |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-53a365f024454d068917a70cf1b9c2ae2025-08-20T02:00:43ZengMDPI AGBuildings2075-53092024-11-011412384810.3390/buildings14123848Experimental Study on Stability Analysis of a Structure During Excavation Beneath This StructureXiaotong He0Zhibin Zhong1Shangheng Huang2Baoxian Liu3Zhile Shu4Wenwu Zhong5Kai Cui6Lining Zheng7Qichao Liu8Chengdu Construction Third Construction Engineering Co., Ltd., Chengdu 610023, ChinaChengdu Construction Third Construction Engineering Co., Ltd., Chengdu 610023, ChinaChengdu Construction Group Co., Ltd., Chengdu 610207, ChinaChengdu Technological University, Chengdu 610031, ChinaSchool of Emergency Management, Xihua University, Chengdu 610039, ChinaCollege of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaChina Southwest Geotechnical Investigation & Design Institute Co., Ltd., Chengdu 610052, ChinaChengdu Construction Third Construction Engineering Co., Ltd., Chengdu 610023, ChinaIn this study, aiming at the practical application of additional layer excavation technology in the renewal and reconstruction of old urban communities, the influence of different excavation methods on the settlement behavior of existing structures is deeply analyzed through numerical simulation experiments. It is found that the frame columns show basin-type settlement in the block layered excavation, basin excavation and central island excavation. The cumulative settlement of the middle column is the largest, and the corner column is the smallest. The settlement phenomenon is mainly concentrated around the frame columns Z6, Z7, Z10 and Z11, and the change law of the cumulative settlement value conforms to the linear function distribution. By defining the cumulative settlement rate (a) as an index to measure the influence degree of the existing structure, it is found that the a value of the middle column is the largest, the side column is the second and the corner column is the smallest, and the a value of block layered excavation is the largest, and the central island excavation is the smallest. Considering the construction period, block layered excavation may be a more appropriate choice. The comparative analysis of the research results and the model experiment results confirms the feasibility of the improved model experiment, provides an important theoretical basis and practical guidance for the renewal and transformation of old urban communities and is of great significance for improving the utilization efficiency and safety of existing buildings.https://www.mdpi.com/2075-5309/14/12/3848old urban communitiesrenovationsustainable developmentnumerical simulationexcavation method |
| spellingShingle | Xiaotong He Zhibin Zhong Shangheng Huang Baoxian Liu Zhile Shu Wenwu Zhong Kai Cui Lining Zheng Qichao Liu Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure Buildings old urban communities renovation sustainable development numerical simulation excavation method |
| title | Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure |
| title_full | Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure |
| title_fullStr | Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure |
| title_full_unstemmed | Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure |
| title_short | Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure |
| title_sort | experimental study on stability analysis of a structure during excavation beneath this structure |
| topic | old urban communities renovation sustainable development numerical simulation excavation method |
| url | https://www.mdpi.com/2075-5309/14/12/3848 |
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