Ground settlement during tunneling in groundwater drawdown environment – Influencing factors
In this paper, the results of a parametric study on groundwater drawdown-induced surface settlement during tunneling in water-bearing ground are presented. A calibrated stress–pore pressure coupled finite element model was adopted for the parametric analysis. The results were analyzed to establish t...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2016-09-01
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| Series: | Underground Space |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S246796741630006X |
| _version_ | 1797711335002210304 |
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| author | Chungsik Yoo |
| author_facet | Chungsik Yoo |
| author_sort | Chungsik Yoo |
| collection | DOAJ |
| description | In this paper, the results of a parametric study on groundwater drawdown-induced surface settlement during tunneling in water-bearing ground are presented. A calibrated stress–pore pressure coupled finite element model was adopted for the parametric analysis. The results were analyzed to establish the relationships between key design issues, such as the ground surface settlement and groundwater drawdown, and influencing factors. An artificial neural network (ANN)-based sensitivity analysis was performed to obtain insight into the relative importance of the influencing factors. The results indicated that the primary influencing factors on the settlement development are the thickness and stiffness of the soil layer within the drawdown zone and the lining permeability, while the initial void ratio and the permeability of the soil layer were considered secondary influencing factors. Practical implications and findings of the study are discussed. |
| first_indexed | 2024-03-12T07:05:34Z |
| format | Article |
| id | doaj.art-ced4d1e66bf24070a0494d7a48dd7748 |
| institution | Directory Open Access Journal |
| issn | 2467-9674 |
| language | English |
| last_indexed | 2024-03-12T07:05:34Z |
| publishDate | 2016-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Underground Space |
| spelling | doaj.art-ced4d1e66bf24070a0494d7a48dd77482023-09-02T23:30:50ZengKeAi Communications Co., Ltd.Underground Space2467-96742016-09-0111202910.1016/j.undsp.2016.07.002Ground settlement during tunneling in groundwater drawdown environment – Influencing factorsChungsik YooIn this paper, the results of a parametric study on groundwater drawdown-induced surface settlement during tunneling in water-bearing ground are presented. A calibrated stress–pore pressure coupled finite element model was adopted for the parametric analysis. The results were analyzed to establish the relationships between key design issues, such as the ground surface settlement and groundwater drawdown, and influencing factors. An artificial neural network (ANN)-based sensitivity analysis was performed to obtain insight into the relative importance of the influencing factors. The results indicated that the primary influencing factors on the settlement development are the thickness and stiffness of the soil layer within the drawdown zone and the lining permeability, while the initial void ratio and the permeability of the soil layer were considered secondary influencing factors. Practical implications and findings of the study are discussed.http://www.sciencedirect.com/science/article/pii/S246796741630006XConventional tunnelingGround settlementGroundwaterFinite element methodStress–pore pressure coupled analysis |
| spellingShingle | Chungsik Yoo Ground settlement during tunneling in groundwater drawdown environment – Influencing factors Underground Space Conventional tunneling Ground settlement Groundwater Finite element method Stress–pore pressure coupled analysis |
| title | Ground settlement during tunneling in groundwater drawdown environment – Influencing factors |
| title_full | Ground settlement during tunneling in groundwater drawdown environment – Influencing factors |
| title_fullStr | Ground settlement during tunneling in groundwater drawdown environment – Influencing factors |
| title_full_unstemmed | Ground settlement during tunneling in groundwater drawdown environment – Influencing factors |
| title_short | Ground settlement during tunneling in groundwater drawdown environment – Influencing factors |
| title_sort | ground settlement during tunneling in groundwater drawdown environment influencing factors |
| topic | Conventional tunneling Ground settlement Groundwater Finite element method Stress–pore pressure coupled analysis |
| url | http://www.sciencedirect.com/science/article/pii/S246796741630006X |
| work_keys_str_mv | AT chungsikyoo groundsettlementduringtunnelingingroundwaterdrawdownenvironmentinfluencingfactors |