Deformation analysis of deep foundation pit in soft soil area considering space–time effect
Taking the deep foundation pit project of Taojiazhai in Shanghai as the background, combined with the real-time monitoring data, the data variation law of several monitoring items during the excavation of foundation pit are analysed. The results show that the axial force of the support, the lateral...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-08-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.5398 |
| _version_ | 1828882721047314432 |
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| author | Lide Shi Wanrong Yu Lei Fu |
| author_facet | Lide Shi Wanrong Yu Lei Fu |
| author_sort | Lide Shi |
| collection | DOAJ |
| description | Taking the deep foundation pit project of Taojiazhai in Shanghai as the background, combined with the real-time monitoring data, the data variation law of several monitoring items during the excavation of foundation pit are analysed. The results show that the axial force of the support, the lateral displacement of the retaining structure and the uplift of the column increase greatly during the excavation of the foundation pit, and tend to be stable after the floor starts to work. The maximum lateral displacement and the depth of the maximum lateral displacement of the maintenance structure increase with the increase of the excavation depth, and the extremum has a definite relationship with the excavation depth. The lateral displacement of maintenance structure and adjacent pipelines are small at the corner of foundation pit and large at the centre of pit wall. Ground settlement around the foundation pit increases first and then decreases along the direction away from the wall. The calculation formula of the settlement of the soil can be revised by introducing the stiffness correction function to predict the settlement of the pipeline. |
| first_indexed | 2024-12-13T10:33:35Z |
| format | Article |
| id | doaj.art-57b0e1cd6c3743cfa33a0a6bb729da82 |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-13T10:33:35Z |
| publishDate | 2019-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-57b0e1cd6c3743cfa33a0a6bb729da822022-12-21T23:50:47ZengWileyThe Journal of Engineering2051-33052019-08-0110.1049/joe.2018.5398JOE.2018.5398Deformation analysis of deep foundation pit in soft soil area considering space–time effectLide Shi0Wanrong Yu1Lei Fu2Xi'an University of Science and TechnologyXi'an University of Science and TechnologyXi'an University of Science and TechnologyTaking the deep foundation pit project of Taojiazhai in Shanghai as the background, combined with the real-time monitoring data, the data variation law of several monitoring items during the excavation of foundation pit are analysed. The results show that the axial force of the support, the lateral displacement of the retaining structure and the uplift of the column increase greatly during the excavation of the foundation pit, and tend to be stable after the floor starts to work. The maximum lateral displacement and the depth of the maximum lateral displacement of the maintenance structure increase with the increase of the excavation depth, and the extremum has a definite relationship with the excavation depth. The lateral displacement of maintenance structure and adjacent pipelines are small at the corner of foundation pit and large at the centre of pit wall. Ground settlement around the foundation pit increases first and then decreases along the direction away from the wall. The calculation formula of the settlement of the soil can be revised by introducing the stiffness correction function to predict the settlement of the pipeline.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.5398deformationpipelinesgeotechnical engineeringsoilfoundationsconstruction componentselasticitymaintenance engineeringexcavation depthfoundation pit maintenance structurelateral displacementdeformation analysissoft soil areaspace-time effecttaojiazhaishanghaireal-time monitoring dataaxial forcepipelinesstiffness correction functioncolumn surface settlement |
| spellingShingle | Lide Shi Wanrong Yu Lei Fu Deformation analysis of deep foundation pit in soft soil area considering space–time effect The Journal of Engineering deformation pipelines geotechnical engineering soil foundations construction components elasticity maintenance engineering excavation depth foundation pit maintenance structure lateral displacement deformation analysis soft soil area space-time effect taojiazhai shanghai real-time monitoring data axial force pipelines stiffness correction function column surface settlement |
| title | Deformation analysis of deep foundation pit in soft soil area considering space–time effect |
| title_full | Deformation analysis of deep foundation pit in soft soil area considering space–time effect |
| title_fullStr | Deformation analysis of deep foundation pit in soft soil area considering space–time effect |
| title_full_unstemmed | Deformation analysis of deep foundation pit in soft soil area considering space–time effect |
| title_short | Deformation analysis of deep foundation pit in soft soil area considering space–time effect |
| title_sort | deformation analysis of deep foundation pit in soft soil area considering space time effect |
| topic | deformation pipelines geotechnical engineering soil foundations construction components elasticity maintenance engineering excavation depth foundation pit maintenance structure lateral displacement deformation analysis soft soil area space-time effect taojiazhai shanghai real-time monitoring data axial force pipelines stiffness correction function column surface settlement |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.5398 |
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