Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors
With the acceleration of urbanization, more crossings of roads and pipelines appear, which poses some threat to the safety of pipeline operation. Taking X65 pipeline as the research object, the mechanical response of pipelines under three types of dynamic loads, namely no-load, half-load and full lo...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Oil & Gas Storage and Transportation
2022-02-01
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| Series: | You-qi chuyun |
| Subjects: | |
| Online Access: | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.02.007 |
| _version_ | 1797210112985661440 |
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| author | Dong ZHANG Hong ZHANG Yazhe ZHOU Jinxu JIANG Ning SHI Zhangzhong WU Xiaoben LIU |
| author_facet | Dong ZHANG Hong ZHANG Yazhe ZHOU Jinxu JIANG Ning SHI Zhangzhong WU Xiaoben LIU |
| author_sort | Dong ZHANG |
| collection | DOAJ |
| description | With the acceleration of urbanization, more crossings of roads and pipelines appear, which poses some threat to the safety of pipeline operation. Taking X65 pipeline as the research object, the mechanical response of pipelines under three types of dynamic loads, namely no-load, half-load and full load, was studied through field tests. A parameterized numerical calculation model considering the nonlinear pipe-soil interaction was established, and the accurate simulation of vehicle dynamic loads was realized, which indicates that the error between the numerical calculation results and the test results is within 5%. On this basis, the influence of vehicle weight, pipe diameter, wall thickness, internal pressure and other factors on the axial mechanical response of the pipelines was further investigated. The results show that the overall vertical bending deformation and local deformation are caused by the rolling compaction of heavy trucks. Meanwhile, the axial compressive stress applied to the top of pipelines and the axial tensile stress caused by the Poisson effect of internal pressure offset each other, so that the axial stress at the top of the pipeline decreases. However, the axial tensile stress at the bottom and side of the pipeline are superimposed with that generated by Poisson effect of internal pressure, which increases the axial stress applied to the bottom of pipeline. Therefore, increasing the diameter, wall thickness and buried depth of pipeline can reduce the influence of rolling compaction of heavy trucks on the pipeline. Besides, the weight of heavy trucks has the greatest influence on the axial stress of the pipeline, generally less than 100 MPa. |
| first_indexed | 2024-04-24T10:05:25Z |
| format | Article |
| id | doaj.art-9478e5eeaaa34335ae82e363187e625e |
| institution | Directory Open Access Journal |
| issn | 1000-8241 |
| language | zho |
| last_indexed | 2024-04-24T10:05:25Z |
| publishDate | 2022-02-01 |
| publisher | Editorial Office of Oil & Gas Storage and Transportation |
| record_format | Article |
| series | You-qi chuyun |
| spelling | doaj.art-9478e5eeaaa34335ae82e363187e625e2024-04-13T02:28:16ZzhoEditorial Office of Oil & Gas Storage and TransportationYou-qi chuyun1000-82412022-02-0141217718410.6047/j.issn.1000-8241.2022.02.007yqcy-41-2-177Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factorsDong ZHANG0Hong ZHANG1Yazhe ZHOU2Jinxu JIANG3Ning SHI4Zhangzhong WU5Xiaoben LIU6College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyChina Petroleum Pipeline Engineering Co. Ltd. International DivisionCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyPipeChina Institute of Science and TechnologyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyWith the acceleration of urbanization, more crossings of roads and pipelines appear, which poses some threat to the safety of pipeline operation. Taking X65 pipeline as the research object, the mechanical response of pipelines under three types of dynamic loads, namely no-load, half-load and full load, was studied through field tests. A parameterized numerical calculation model considering the nonlinear pipe-soil interaction was established, and the accurate simulation of vehicle dynamic loads was realized, which indicates that the error between the numerical calculation results and the test results is within 5%. On this basis, the influence of vehicle weight, pipe diameter, wall thickness, internal pressure and other factors on the axial mechanical response of the pipelines was further investigated. The results show that the overall vertical bending deformation and local deformation are caused by the rolling compaction of heavy trucks. Meanwhile, the axial compressive stress applied to the top of pipelines and the axial tensile stress caused by the Poisson effect of internal pressure offset each other, so that the axial stress at the top of the pipeline decreases. However, the axial tensile stress at the bottom and side of the pipeline are superimposed with that generated by Poisson effect of internal pressure, which increases the axial stress applied to the bottom of pipeline. Therefore, increasing the diameter, wall thickness and buried depth of pipeline can reduce the influence of rolling compaction of heavy trucks on the pipeline. Besides, the weight of heavy trucks has the greatest influence on the axial stress of the pipeline, generally less than 100 MPa.http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.02.007rolling compaction of heavy trucksfield testfinite element modelinfluencing factorsmechanical response |
| spellingShingle | Dong ZHANG Hong ZHANG Yazhe ZHOU Jinxu JIANG Ning SHI Zhangzhong WU Xiaoben LIU Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors You-qi chuyun rolling compaction of heavy trucks field test finite element model influencing factors mechanical response |
| title | Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors |
| title_full | Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors |
| title_fullStr | Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors |
| title_full_unstemmed | Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors |
| title_short | Mechanical response of X65 pipeline under rolling compaction of heavy trucks and the influencing factors |
| title_sort | mechanical response of x65 pipeline under rolling compaction of heavy trucks and the influencing factors |
| topic | rolling compaction of heavy trucks field test finite element model influencing factors mechanical response |
| url | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.02.007 |
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