FUZZY MATTER ELEMENT COMPREHENSIVE EVALUA-TION FOR SOIL CORROSIVITY ALONG THE GAS PIPELINE

doi:10.3863/j.issn.1000-2634.2000.03.025

西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (3): 91-93.DOI: 10.3863/j.issn.1000-2634.2000.03.025

• 油气地面工程 • Previous Articles Next Articles

FUZZY MATTER ELEMENT COMPREHENSIVE EVALUA-TION FOR SOIL CORROSIVITY ALONG THE GAS PIPELINE

Jing Jia-qiang¹ Huang Kun¹ Li Liang-jun²

(Southwest Petroleum Inst.)

Received:1999-11-20 Revised:1900-01-01 Online:2000-08-20 Published:2000-08-20
Contact: Jing Jia-qiang

Abstract

Abstract: The conventional evaluation methods of soil corrosivity on basis of multifactorial standards of definite classifying line often lose some useful information and even cause some wrong conclu-sions. Based on the theory of fuzzy material - element, a new method for comprehensively evaluation of soil corrosivity along metal pipelines is presented. The basic ideas are to combine
fuzzy mathematics with matter element analysis, substitute fuzzy boundaries for the conventional definite boundaries and comprehensively evaluate the objects to be analyzed according to their similar extent. The key of this method is to determine the membership grades of corresponding physical and chemical in-dexes of soil samples, composite matter element of weights of
each characteristic index, composite fuzzy matter element of re-lational coefficients and grades. The related basic concepts, the-ory and implementation of the method are expounded in this pa-per. The effectiveness of the method is proved by soil corrosivi-ty evaluation along gas pipeline from Xinchang’s gas field to Qing Baijiang in Sichuan.

Key words: fuzzy matter-element, evaluation, soil corro-sion, gas pipeline

CLC Number:

TE988.2

Jing Jia-qiang Huang Kun Li Liang-jun　. FUZZY MATTER ELEMENT COMPREHENSIVE EVALUA-TION FOR SOIL CORROSIVITY ALONG THE GAS PIPELINE[J]. 西南石油大学学报(自然科学版), 2000, 22(3): 91-93.

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FUZZY MATTER ELEMENT COMPREHENSIVE EVALUA-TION FOR SOIL CORROSIVITY ALONG THE GAS PIPELINE

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