Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers
To create a discretized prediction model for the deformation of an adjacent pipeline, the pipeline structure is discretized, the differential equations governing the longitudinal deformation of the pipeline are inferred, and the displacement expressions and the solution methods of the virtual nodes...
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MDPI AG
2025-01-01
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| author | Kezhong Wang Qianjiang Zheng Maowen Hang |
| author_facet | Kezhong Wang Qianjiang Zheng Maowen Hang |
| author_sort | Kezhong Wang |
| collection | DOAJ |
| description | To create a discretized prediction model for the deformation of an adjacent pipeline, the pipeline structure is discretized, the differential equations governing the longitudinal deformation of the pipeline are inferred, and the displacement expressions and the solution methods of the virtual nodes of each unit are provided after discretization. This approach is based on the Pasternak foundation beam theory. It aims to address the issue of the difficulty in predicting the deformation of the adjacent pipeline caused by shield tunneling in a saturated soft ground layer in the Yangtze River Delta. The deformation pattern of the surrounding soil is determined and confirmed through additional numerical simulation, and the discretized prediction model is contrasted with the conventional Winkler foundation beam model and the Pasternak foundation beam model. The findings demonstrate that the discrete prediction model is simpler to solve and more accurately describes the deformation characteristics of the adjacent pipeline as well as the deformation distribution law. The calculated deformation characteristics primarily appear as the adjacent pipeline’s deformation due to the double tunnel boring exhibiting a “mono-peak shape” with a large middle and small ends, which is consistent with the actual situation. The two main factors influencing the pipeline deformation are the shield tunneling distance and pipeline spacing; the former has a negative correlation with the pipeline deformation, while the latter has a positive correlation. This work can offer a straightforward deformation prediction technique for shield tunneling in the Yangtze River Delta’s saturated soft ground next to existing pipelines. |
| format | Article |
| id | doaj-art-a5186a5ed11a47eab1529a22be33310e |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-a5186a5ed11a47eab1529a22be33310e2025-01-24T13:20:43ZengMDPI AGApplied Sciences2076-34172025-01-0115275810.3390/app15020758Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground LayersKezhong Wang0Qianjiang Zheng1Maowen Hang2College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, ChinaTo create a discretized prediction model for the deformation of an adjacent pipeline, the pipeline structure is discretized, the differential equations governing the longitudinal deformation of the pipeline are inferred, and the displacement expressions and the solution methods of the virtual nodes of each unit are provided after discretization. This approach is based on the Pasternak foundation beam theory. It aims to address the issue of the difficulty in predicting the deformation of the adjacent pipeline caused by shield tunneling in a saturated soft ground layer in the Yangtze River Delta. The deformation pattern of the surrounding soil is determined and confirmed through additional numerical simulation, and the discretized prediction model is contrasted with the conventional Winkler foundation beam model and the Pasternak foundation beam model. The findings demonstrate that the discrete prediction model is simpler to solve and more accurately describes the deformation characteristics of the adjacent pipeline as well as the deformation distribution law. The calculated deformation characteristics primarily appear as the adjacent pipeline’s deformation due to the double tunnel boring exhibiting a “mono-peak shape” with a large middle and small ends, which is consistent with the actual situation. The two main factors influencing the pipeline deformation are the shield tunneling distance and pipeline spacing; the former has a negative correlation with the pipeline deformation, while the latter has a positive correlation. This work can offer a straightforward deformation prediction technique for shield tunneling in the Yangtze River Delta’s saturated soft ground next to existing pipelines.https://www.mdpi.com/2076-3417/15/2/758soil layershield tunnelPasternak foundation beamexisting pipelinesdeformation prediction model |
| spellingShingle | Kezhong Wang Qianjiang Zheng Maowen Hang Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers Applied Sciences soil layer shield tunnel Pasternak foundation beam existing pipelines deformation prediction model |
| title | Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers |
| title_full | Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers |
| title_fullStr | Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers |
| title_full_unstemmed | Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers |
| title_short | Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers |
| title_sort | predictive model for deformation of adjacent pipelines caused by tunnel boring in twin lane tunnels in soft ground layers |
| topic | soil layer shield tunnel Pasternak foundation beam existing pipelines deformation prediction model |
| url | https://www.mdpi.com/2076-3417/15/2/758 |
| work_keys_str_mv | AT kezhongwang predictivemodelfordeformationofadjacentpipelinescausedbytunnelboringintwinlanetunnelsinsoftgroundlayers AT qianjiangzheng predictivemodelfordeformationofadjacentpipelinescausedbytunnelboringintwinlanetunnelsinsoftgroundlayers AT maowenhang predictivemodelfordeformationofadjacentpipelinescausedbytunnelboringintwinlanetunnelsinsoftgroundlayers |