Study on the calculation method of vertical displacement of pipeline induced by tunnel undercrossing multiple pipelines
By: Wang, Hai-tao
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Contributor(s): Ming-yang, Xu.
Publisher: USA Springer 2023Edition: Vol.53(5), Oct.Description: 1165-1174p.Subject(s): Construction Engineering and Management (CEM)Online resources: Click here
In:
Indian geotechnical journalSummary: In order to investigate the vertical displacement of the pipeline induced by the interaction of pipelines when a tunnel undercrossing multiple pipelines, the energy variational control equation is firstly established based on the principle of minimum potential energy, a method to calculate the vertical displacement of a pipeline is proposed when a tunnel undercrossing the single pipeline vertically. On this basis, considering the interaction between pipelines, the modified energy variational equation is established to calculate the vertical displacement of the pipeline under the condition that the tunnel runs vertically through multiple pipelines. Then, the accuracy of the calculation method is verified by using relevant experimental data. The influence parameters of vertical displacement of pipeline are analyzed, including the soil type of pipeline, the ground loss ratio caused by construction, the buried depth of pipeline and the elastic modulus of pipeline, among which the ground loss ratio has the greatest influence on vertical displacement of pipeline. When the buried depth of pipeline exceeds a certain depth, the vertical displacement of pipeline will increase obviously. The influence of soil type and elastic modulus of pipeline should be considered according to the actual engineering situation. The vertical displacement calculation method and influence parameter law of pipeline can predict the vertical displacement of pipeline in practical engineering.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
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Articles Abstract Database
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School of Engineering & Technology (PG) Archieval Section | Not for loan | 2024-0055 |
In order to investigate the vertical displacement of the pipeline induced by the interaction of pipelines when a tunnel undercrossing multiple pipelines, the energy variational control equation is firstly established based on the principle of minimum potential energy, a method to calculate the vertical displacement of a pipeline is proposed when a tunnel undercrossing the single pipeline vertically. On this basis, considering the interaction between pipelines, the modified energy variational equation is established to calculate the vertical displacement of the pipeline under the condition that the tunnel runs vertically through multiple pipelines. Then, the accuracy of the calculation method is verified by using relevant experimental data. The influence parameters of vertical displacement of pipeline are analyzed, including the soil type of pipeline, the ground loss ratio caused by construction, the buried depth of pipeline and the elastic modulus of pipeline, among which the ground loss ratio has the greatest influence on vertical displacement of pipeline. When the buried depth of pipeline exceeds a certain depth, the vertical displacement of pipeline will increase obviously. The influence of soil type and elastic modulus of pipeline should be considered according to the actual engineering situation. The vertical displacement calculation method and influence parameter law of pipeline can predict the vertical displacement of pipeline in practical engineering.
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