Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines
Winkler elastic foundation beam theory is often used to observe the influence of underground engineering construction on pipelines. Excavation under existing pipelines disturbs the lower strata to varying extent, which creates significant differences in the subgrade coefficients. Ignoring these diff...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/5469345 |
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| _version_ | 1832556387401465856 |
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| author | Xingfa Feng Xian Yang Yongsuo Li Xingyu Ding |
| author_facet | Xingfa Feng Xian Yang Yongsuo Li Xingyu Ding |
| author_sort | Xingfa Feng |
| collection | DOAJ |
| description | Winkler elastic foundation beam theory is often used to observe the influence of underground engineering construction on pipelines. Excavation under existing pipelines disturbs the lower strata to varying extent, which creates significant differences in the subgrade coefficients. Ignoring these differences can severely impact the accuracy of calculation results. A theoretical model of the effects of underground excavation on upper-level existing pipelines was developed in this study based on Winkler elastic foundation beam theory and considering the difference of subgrade coefficients under the existing pipeline. Methods for determining the subgrade coefficient under the influence of construction disturbance and other relevant parameters are proposed. The theoretical model can be used to calculate the settlement of an existing pipeline under the influence of underground excavation. The calculated settlement was compared with settlement measurements to find that the subgrade coefficient of the excavation section is the most important parameter in the calculation process. The suitable value range of the excavation subgrade coefficient is relatively large, as it has a relatively minor influence on the calculation result. When the value of subgrade coefficient of each section is appropriate, the calculated settlement curve is in close accordance with the measured settlement curve. |
| format | Article |
| id | doaj-art-42abecf1f00b434e90399b8c13a4136d |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-42abecf1f00b434e90399b8c13a4136d2025-02-03T05:45:29ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/5469345Influence of Underground Tunnel Excavation on Upper-level Existing PipelinesXingfa Feng0Xian Yang1Yongsuo Li2Xingyu Ding3CCTEGCollege of Civil EngineeringSchool of Municipal and Geomatics EngineeringCollege of Civil EngineeringWinkler elastic foundation beam theory is often used to observe the influence of underground engineering construction on pipelines. Excavation under existing pipelines disturbs the lower strata to varying extent, which creates significant differences in the subgrade coefficients. Ignoring these differences can severely impact the accuracy of calculation results. A theoretical model of the effects of underground excavation on upper-level existing pipelines was developed in this study based on Winkler elastic foundation beam theory and considering the difference of subgrade coefficients under the existing pipeline. Methods for determining the subgrade coefficient under the influence of construction disturbance and other relevant parameters are proposed. The theoretical model can be used to calculate the settlement of an existing pipeline under the influence of underground excavation. The calculated settlement was compared with settlement measurements to find that the subgrade coefficient of the excavation section is the most important parameter in the calculation process. The suitable value range of the excavation subgrade coefficient is relatively large, as it has a relatively minor influence on the calculation result. When the value of subgrade coefficient of each section is appropriate, the calculated settlement curve is in close accordance with the measured settlement curve.http://dx.doi.org/10.1155/2022/5469345 |
| spellingShingle | Xingfa Feng Xian Yang Yongsuo Li Xingyu Ding Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines Advances in Civil Engineering |
| title | Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines |
| title_full | Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines |
| title_fullStr | Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines |
| title_full_unstemmed | Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines |
| title_short | Influence of Underground Tunnel Excavation on Upper-level Existing Pipelines |
| title_sort | influence of underground tunnel excavation on upper level existing pipelines |
| url | http://dx.doi.org/10.1155/2022/5469345 |
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