Improving the method for assessment of bending stresses in the wall of an underground pipeline
Brief information about modern methods for determining the bending stresses of the extended sections of underground main pipelines without access to the pipeline generatrix is given. The necessity of modernizing methods based on determining the configuration of the pipeline axis from the soil surfac...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2022-11-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/15857?setLocale=en_US |
| _version_ | 1797947248157392896 |
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| author | Ruslan V. Aginey Alexei A. Firstov |
| author_facet | Ruslan V. Aginey Alexei A. Firstov |
| author_sort | Ruslan V. Aginey |
| collection | DOAJ |
| description | Brief information about modern methods for determining the bending stresses of the extended sections of underground main pipelines without access to the pipeline generatrix is given. The necessity of modernizing methods based on determining the configuration of the pipeline axis from the soil surface with subsequent calculation of bending stresses based on the obtained data is substantiated. A mathematical model that allows to calculate the optimal parameters for surveying the axis of the pipeline from the soil surface for a pipeline of arbitrary configuration and depth, when planning a study, is proposed. Bench tests of the BITA-1 pipeline finder were carried out to determine the error in measuring the depth of the pipeline axis. It is proved that the deviations of the pipeline finder data relative to the true values in narrow depth intervals follow a normal distribution and do not change their sign. The confidence intervals of the error in determining the depth of the pipeline axis for the BITA-1 device are presented. |
| first_indexed | 2024-04-10T21:24:47Z |
| format | Article |
| id | doaj.art-346282a2fbec49249772cb7f064d85e7 |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:24:47Z |
| publishDate | 2022-11-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-346282a2fbec49249772cb7f064d85e72023-01-20T02:04:52ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042022-11-0125774475410.31897/PMI.2022.6415857Improving the method for assessment of bending stresses in the wall of an underground pipelineRuslan V. Aginey0https://orcid.org/0000-0002-5982-8983Alexei A. Firstov1https://orcid.org/0000-0002-3979-9898Ukhta State Technical UniversitySaint Petersburg Mining UniversityBrief information about modern methods for determining the bending stresses of the extended sections of underground main pipelines without access to the pipeline generatrix is given. The necessity of modernizing methods based on determining the configuration of the pipeline axis from the soil surface with subsequent calculation of bending stresses based on the obtained data is substantiated. A mathematical model that allows to calculate the optimal parameters for surveying the axis of the pipeline from the soil surface for a pipeline of arbitrary configuration and depth, when planning a study, is proposed. Bench tests of the BITA-1 pipeline finder were carried out to determine the error in measuring the depth of the pipeline axis. It is proved that the deviations of the pipeline finder data relative to the true values in narrow depth intervals follow a normal distribution and do not change their sign. The confidence intervals of the error in determining the depth of the pipeline axis for the BITA-1 device are presented.https://pmi.spmi.ru/index.php/pmi/article/view/15857?setLocale=en_USbending stressesstress-strain statemain pipelinepipeline finder |
| spellingShingle | Ruslan V. Aginey Alexei A. Firstov Improving the method for assessment of bending stresses in the wall of an underground pipeline Записки Горного института bending stresses stress-strain state main pipeline pipeline finder |
| title | Improving the method for assessment of bending stresses in the wall of an underground pipeline |
| title_full | Improving the method for assessment of bending stresses in the wall of an underground pipeline |
| title_fullStr | Improving the method for assessment of bending stresses in the wall of an underground pipeline |
| title_full_unstemmed | Improving the method for assessment of bending stresses in the wall of an underground pipeline |
| title_short | Improving the method for assessment of bending stresses in the wall of an underground pipeline |
| title_sort | improving the method for assessment of bending stresses in the wall of an underground pipeline |
| topic | bending stresses stress-strain state main pipeline pipeline finder |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/15857?setLocale=en_US |
| work_keys_str_mv | AT ruslanvaginey improvingthemethodforassessmentofbendingstressesinthewallofanundergroundpipeline AT alexeiafirstov improvingthemethodforassessmentofbendingstressesinthewallofanundergroundpipeline |