Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata
The main goal of this study is to enhance the prediction of ground surface settlements induced by Earth pressure balance (EPB) shield tunneling. In the setting of Changzhou, China, a comprehensive database of long-term ground-displacement findings from Metro Lines No. 1 and No. 2 was analyzed with t...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/9/4665 |
| _version_ | 1797505550790950912 |
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| author | Yi Yang Xinggao Li Dalong Jin Xingqi Jiang Hanyuan Li |
| author_facet | Yi Yang Xinggao Li Dalong Jin Xingqi Jiang Hanyuan Li |
| author_sort | Yi Yang |
| collection | DOAJ |
| description | The main goal of this study is to enhance the prediction of ground surface settlements induced by Earth pressure balance (EPB) shield tunneling. In the setting of Changzhou, China, a comprehensive database of long-term ground-displacement findings from Metro Lines No. 1 and No. 2 was analyzed with the goal of assessing the parameters characterizing the settlement, i.e., volume loss, trough width parameter. For the metro lines in the water-rich soft strata of Changzhou, the ground loss <i>V<sub>l</sub></i> is usually in the range of 0.1–0.75%, and the trough width parameter <i>K</i> is usually in the range from 0.3 to 0.7. A superposition analytical method is proposed to estimate the short-term ground settlements induced by shield tunneling, with attention given to ground loss as well as shield working loads. The suggested analytical approach was found to be in good agreement with the field measurements in the case of EPB shield tunneling. This study can provide a reliable assessment of the long-term as well as short-term ground surface settlements for tunnel design. |
| first_indexed | 2024-03-10T04:20:12Z |
| format | Article |
| id | doaj.art-a914be9402f94ef4af3764e4785a02df |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T04:20:12Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-a914be9402f94ef4af3764e4785a02df2023-11-23T07:52:13ZengMDPI AGApplied Sciences2076-34172022-05-01129466510.3390/app12094665Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft StrataYi Yang0Xinggao Li1Dalong Jin2Xingqi Jiang3Hanyuan Li4Key Laboratory of Urban Underground Engineering of the Education Ministry, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of the Education Ministry, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of the Education Ministry, Beijing Jiaotong University, Beijing 100044, ChinaChangzhou Metro Group Co., Ltd., Changzhou 213000, ChinaKey Laboratory of Urban Underground Engineering of the Education Ministry, Beijing Jiaotong University, Beijing 100044, ChinaThe main goal of this study is to enhance the prediction of ground surface settlements induced by Earth pressure balance (EPB) shield tunneling. In the setting of Changzhou, China, a comprehensive database of long-term ground-displacement findings from Metro Lines No. 1 and No. 2 was analyzed with the goal of assessing the parameters characterizing the settlement, i.e., volume loss, trough width parameter. For the metro lines in the water-rich soft strata of Changzhou, the ground loss <i>V<sub>l</sub></i> is usually in the range of 0.1–0.75%, and the trough width parameter <i>K</i> is usually in the range from 0.3 to 0.7. A superposition analytical method is proposed to estimate the short-term ground settlements induced by shield tunneling, with attention given to ground loss as well as shield working loads. The suggested analytical approach was found to be in good agreement with the field measurements in the case of EPB shield tunneling. This study can provide a reliable assessment of the long-term as well as short-term ground surface settlements for tunnel design.https://www.mdpi.com/2076-3417/12/9/4665shield tunnelmetroground surface settlementprediction modelsettlement trough |
| spellingShingle | Yi Yang Xinggao Li Dalong Jin Xingqi Jiang Hanyuan Li Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata Applied Sciences shield tunnel metro ground surface settlement prediction model settlement trough |
| title | Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata |
| title_full | Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata |
| title_fullStr | Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata |
| title_full_unstemmed | Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata |
| title_short | Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata |
| title_sort | prediction of ground surface settlements induced by epb shield tunneling in water rich soft strata |
| topic | shield tunnel metro ground surface settlement prediction model settlement trough |
| url | https://www.mdpi.com/2076-3417/12/9/4665 |
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