Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings
The excavation of deep foundation pits has a significant impact on the stability of adjacent buildings. On the basis of a deep foundation pit project in Xi’an, China, the deformation of a diaphragm wall and the settlement and deformation of an adjacent ancient building with and without MJS (Metro Je...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/8/2004 |
| _version_ | 1827730138107740160 |
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| author | Dandan Zhang |
| author_facet | Dandan Zhang |
| author_sort | Dandan Zhang |
| collection | DOAJ |
| description | The excavation of deep foundation pits has a significant impact on the stability of adjacent buildings. On the basis of a deep foundation pit project in Xi’an, China, the deformation of a diaphragm wall and the settlement and deformation of an adjacent ancient building with and without MJS (Metro Jet System) pile reinforcement were studied through onsite monitoring and numerical simulation. The influence of the building’s settlement difference on the shear strain of the building’s walls was analyzed, and then the effect of MJS pile reinforcement was verified. The research results show that (1) the settlement difference serves as the primary cause of the shear strain of the building, and the shear strain rises with increasing settlement difference; (2) the maximum shear strain of the building occurs on both sides of the building’s doors and windows and on the left and right corners of the building’s walls; (3) the shear strain and settlement of the building without MJS pile reinforcement are significantly greater than those with MJS pile reinforcement; and (4) MJS pile support exhibits a better reinforcement effect within one times the excavation depth of the foundation pit. These research results have a certain guiding significance for enhancing the stability of foundation pits and ensuring the safety of adjacent buildings. |
| first_indexed | 2024-03-11T00:05:00Z |
| format | Article |
| id | doaj.art-fa2b1a12cff145d2a0c0ba01aef0c057 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T00:05:00Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-fa2b1a12cff145d2a0c0ba01aef0c0572023-11-19T00:29:44ZengMDPI AGBuildings2075-53092023-08-01138200410.3390/buildings13082004Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient BuildingsDandan Zhang0School of Art and Design, Henan University of Urban Construction, Pingdingshan 467000, ChinaThe excavation of deep foundation pits has a significant impact on the stability of adjacent buildings. On the basis of a deep foundation pit project in Xi’an, China, the deformation of a diaphragm wall and the settlement and deformation of an adjacent ancient building with and without MJS (Metro Jet System) pile reinforcement were studied through onsite monitoring and numerical simulation. The influence of the building’s settlement difference on the shear strain of the building’s walls was analyzed, and then the effect of MJS pile reinforcement was verified. The research results show that (1) the settlement difference serves as the primary cause of the shear strain of the building, and the shear strain rises with increasing settlement difference; (2) the maximum shear strain of the building occurs on both sides of the building’s doors and windows and on the left and right corners of the building’s walls; (3) the shear strain and settlement of the building without MJS pile reinforcement are significantly greater than those with MJS pile reinforcement; and (4) MJS pile support exhibits a better reinforcement effect within one times the excavation depth of the foundation pit. These research results have a certain guiding significance for enhancing the stability of foundation pits and ensuring the safety of adjacent buildings.https://www.mdpi.com/2075-5309/13/8/2004deep foundation pitadjacent ancient buildingMJS pile foundationground settlementnumerical simulation |
| spellingShingle | Dandan Zhang Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings Buildings deep foundation pit adjacent ancient building MJS pile foundation ground settlement numerical simulation |
| title | Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings |
| title_full | Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings |
| title_fullStr | Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings |
| title_full_unstemmed | Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings |
| title_short | Influences of Deep Foundation Pit Excavation on the Stability of Adjacent Ancient Buildings |
| title_sort | influences of deep foundation pit excavation on the stability of adjacent ancient buildings |
| topic | deep foundation pit adjacent ancient building MJS pile foundation ground settlement numerical simulation |
| url | https://www.mdpi.com/2075-5309/13/8/2004 |
| work_keys_str_mv | AT dandanzhang influencesofdeepfoundationpitexcavationonthestabilityofadjacentancientbuildings |