Assessment of risk of flood damage at slope of pipeline based on combination of entropy method and extension theory

doi:10.16265/j.cnki.issn1003-3033.2017.12.019

Abstract

Abstract: In order to prevent flood damage at slope of oil and gas pipelines, it's essential to assess the risk of flood damage. A matter-element model was built for assessing the risk by the extension theory. Correlation functions were calculated for the evaluation indexes. By using the entropy method, values of weight were assigned to the evaluation indexes. So the level of risk was assessed. Then eleven slope gullies located at Gansu Corridor Gaotai were selected as evaluation objects. A comparison was made between the evaluation results calculated by this method and those calculated by using the software of the pipeline companies. The results indicate that the evaluation results obtained by using the extension theory based on the entropy method conform with those obtained by using the software for those eleven slope gullies.

Key words: pipeline, flood damage at slope, assessment of risk, extension theory, entropy method

CLC Number:

X913.4

ZHANG Qing, WANG Shengxin, WANG Pengfei, XU Zhen. Assessment of risk of flood damage at slope of pipeline based on combination of entropy method and extension theory[J]. China Safety Science Journal, 2017, 27(12): 110-115.

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