Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory

Abstract The comprehensive evaluation of pipeline loess collapsibility risk is a necessary means to control the safety risks of pipelines in the collapsible loess section. It is also one of the critical scientific bases for risk prevention, control, and management. The comprehensive evaluation syste...

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Autores principales:	Xiaohui Liu, Manyin Zhang, Zhizhong Sun, Huyuan Zhang, Yimin Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/834aa33248564ffda32b428f69e621f4
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spelling	oai:doaj.org-article:834aa33248564ffda32b428f69e621f42021-12-02T16:06:41ZComprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory10.1038/s41598-021-94882-22045-2322https://doaj.org/article/834aa33248564ffda32b428f69e621f42021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94882-2https://doaj.org/toc/2045-2322Abstract The comprehensive evaluation of pipeline loess collapsibility risk is a necessary means to control the safety risks of pipelines in the collapsible loess section. It is also one of the critical scientific bases for risk prevention, control, and management. The comprehensive evaluation system of cloud theory consists of quantitative and qualitative indexes, and the evaluation system has the characteristics of randomness and fuzziness. In view of this problem, the standard qualitative and semi-quantitative evaluation methods have intense subjectivity in dealing with the uncertainty problems such as randomness and fuzziness of the system, the cloud theory, which can effectively reflect the randomness and fuzziness of things at the same time, is introduced. The state scale cloud and index importance weight cloud of pipeline loess collapse risk are constructed by the golden section method. The uncertainty cloud reasoning process of the quantitative indexes and the expert scoring method of the qualitative indexes are proposed. The comprehensive evaluation model of loess collapsibility risk of oil and gas pipeline is established, and the engineering example is analyzed. The complete evaluation results of 10 samples to be evaluated are consistent with the results of the semi-quantitative method and are compatible with the actual situation. The evaluation process softens the subjective division of index boundary, simplifies the preprocessing of index data, realizes the organic integration of quantitative and qualitative decisions, and improves the accuracy, rationality, and visualization of the results.Xiaohui LiuManyin ZhangZhizhong SunHuyuan ZhangYimin ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaohui Liu Manyin Zhang Zhizhong Sun Huyuan Zhang Yimin Zhang Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
description	Abstract The comprehensive evaluation of pipeline loess collapsibility risk is a necessary means to control the safety risks of pipelines in the collapsible loess section. It is also one of the critical scientific bases for risk prevention, control, and management. The comprehensive evaluation system of cloud theory consists of quantitative and qualitative indexes, and the evaluation system has the characteristics of randomness and fuzziness. In view of this problem, the standard qualitative and semi-quantitative evaluation methods have intense subjectivity in dealing with the uncertainty problems such as randomness and fuzziness of the system, the cloud theory, which can effectively reflect the randomness and fuzziness of things at the same time, is introduced. The state scale cloud and index importance weight cloud of pipeline loess collapse risk are constructed by the golden section method. The uncertainty cloud reasoning process of the quantitative indexes and the expert scoring method of the qualitative indexes are proposed. The comprehensive evaluation model of loess collapsibility risk of oil and gas pipeline is established, and the engineering example is analyzed. The complete evaluation results of 10 samples to be evaluated are consistent with the results of the semi-quantitative method and are compatible with the actual situation. The evaluation process softens the subjective division of index boundary, simplifies the preprocessing of index data, realizes the organic integration of quantitative and qualitative decisions, and improves the accuracy, rationality, and visualization of the results.
format	article
author	Xiaohui Liu Manyin Zhang Zhizhong Sun Huyuan Zhang Yimin Zhang
author_facet	Xiaohui Liu Manyin Zhang Zhizhong Sun Huyuan Zhang Yimin Zhang
author_sort	Xiaohui Liu
title	Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
title_short	Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
title_full	Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
title_fullStr	Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
title_full_unstemmed	Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
title_sort	comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/834aa33248564ffda32b428f69e621f4
work_keys_str_mv	AT xiaohuiliu comprehensiveevaluationofloesscollapsibilityofoilandgaspipelinebasedoncloudtheory AT manyinzhang comprehensiveevaluationofloesscollapsibilityofoilandgaspipelinebasedoncloudtheory AT zhizhongsun comprehensiveevaluationofloesscollapsibilityofoilandgaspipelinebasedoncloudtheory AT huyuanzhang comprehensiveevaluationofloesscollapsibilityofoilandgaspipelinebasedoncloudtheory AT yiminzhang comprehensiveevaluationofloesscollapsibilityofoilandgaspipelinebasedoncloudtheory
_version_	1718384911514075136

Comprehensive evaluation of loess collapsibility of oil and gas pipeline based on cloud theory

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