Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer
[Objective] In thick silty clay layers, the disturbance caused by shield tunneling is affected by multiple factors such as strata conditions and construction parameters. Given the complexity of strata deformation, it is necessary to study the influence law of strata conditions and construction param...
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| Format: | Article |
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Urban Mass Transit Magazine Press
2025-05-01
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| Series: | Chengshi guidao jiaotong yanjiu |
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| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.05.011.html |
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| author | LI Liang LU Yong FAN Cunxin GUO Bing ZHU Wenxuan |
| author_facet | LI Liang LU Yong FAN Cunxin GUO Bing ZHU Wenxuan |
| author_sort | LI Liang |
| collection | DOAJ |
| description | [Objective] In thick silty clay layers, the disturbance caused by shield tunneling is affected by multiple factors such as strata conditions and construction parameters. Given the complexity of strata deformation, it is necessary to study the influence law of strata conditions and construction parameters on shield tunneling induced strata deformation. [Method] Taking a tunneling section of Suzhou Rail Transit Line 11 as an example, the stress-seepage coupling calculation of shield tunneling in saturated soil is carried out. Soil mechanical properties are calculated using the lower load surface constitutive model capable of considering pore correlation. Calculation results are analyzed and compared with the measured results. The influence of formation conditions (soil permeability coefficient) and construction parameters (face pressure, tunneling speed) on strata deformation during shield tunneling is analyzed, together with the factors sensitivity. [Result & Conclusion] Adopting the stress-seepage coupling calculation of the lower load surface constitutive model can well reproduce strata deformation response induced by shield tunneling; the increase of face pressure and tunneling speed will reduce the total ground settlement, while the greater the soil permeability coefficient, the greater the total land subsidence. The sensitivity of each influencing factor for strata deformation induced by shield tunneling is in the following order: face pressure sensitivity>soil permeability sensitivity>tunneling speed sensitivity. |
| format | Article |
| id | doaj-art-69f84d95b09a48c4b72f441adcb05b83 |
| institution | Kabale University |
| issn | 1007-869X |
| language | zho |
| publishDate | 2025-05-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-69f84d95b09a48c4b72f441adcb05b832025-08-20T03:53:07ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2025-05-01285616710.16037/j.1007-869x.2025.05.011Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay LayerLI Liang0LU Yong1FAN Cunxin2GUO Bing3ZHU Wenxuan4School of Civil Engineering, Suzhou University of Science and Technology, 215011, Suzhou, ChinaSchool of Civil Engineering, Suzhou University of Science and Technology, 215011, Suzhou, ChinaSchool of Civil Engineering, Suzhou University of Science and Technology, 215011, Suzhou, ChinaChina Railway 16th Bureau Group Beijing Metro Engineering Construction Co., Ltd., 100018, Beijing, ChinaSchool of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China[Objective] In thick silty clay layers, the disturbance caused by shield tunneling is affected by multiple factors such as strata conditions and construction parameters. Given the complexity of strata deformation, it is necessary to study the influence law of strata conditions and construction parameters on shield tunneling induced strata deformation. [Method] Taking a tunneling section of Suzhou Rail Transit Line 11 as an example, the stress-seepage coupling calculation of shield tunneling in saturated soil is carried out. Soil mechanical properties are calculated using the lower load surface constitutive model capable of considering pore correlation. Calculation results are analyzed and compared with the measured results. The influence of formation conditions (soil permeability coefficient) and construction parameters (face pressure, tunneling speed) on strata deformation during shield tunneling is analyzed, together with the factors sensitivity. [Result & Conclusion] Adopting the stress-seepage coupling calculation of the lower load surface constitutive model can well reproduce strata deformation response induced by shield tunneling; the increase of face pressure and tunneling speed will reduce the total ground settlement, while the greater the soil permeability coefficient, the greater the total land subsidence. The sensitivity of each influencing factor for strata deformation induced by shield tunneling is in the following order: face pressure sensitivity>soil permeability sensitivity>tunneling speed sensitivity.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.05.011.htmlurban rail transitshield tunnelingstrata deformation response |
| spellingShingle | LI Liang LU Yong FAN Cunxin GUO Bing ZHU Wenxuan Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer Chengshi guidao jiaotong yanjiu urban rail transit shield tunneling strata deformation response |
| title | Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer |
| title_full | Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer |
| title_fullStr | Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer |
| title_full_unstemmed | Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer |
| title_short | Influence Factors of Strata Deformation Response Induced by Shield Tunneling in Thick Silty Clay Layer |
| title_sort | influence factors of strata deformation response induced by shield tunneling in thick silty clay layer |
| topic | urban rail transit shield tunneling strata deformation response |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.05.011.html |
| work_keys_str_mv | AT liliang influencefactorsofstratadeformationresponseinducedbyshieldtunnelinginthicksiltyclaylayer AT luyong influencefactorsofstratadeformationresponseinducedbyshieldtunnelinginthicksiltyclaylayer AT fancunxin influencefactorsofstratadeformationresponseinducedbyshieldtunnelinginthicksiltyclaylayer AT guobing influencefactorsofstratadeformationresponseinducedbyshieldtunnelinginthicksiltyclaylayer AT zhuwenxuan influencefactorsofstratadeformationresponseinducedbyshieldtunnelinginthicksiltyclaylayer |