Application of Extension Method for Risk Assessment on Geological Disaster in Pipeline Project of Natural Gas Transmission

Geoscience ›› 2013, Vol. 27 ›› Issue (2): 482-488.

• Engineering Geology and Environmental Geology • Previous Articles Next Articles

Application of Extension Method for Risk Assessment on Geological Disaster in Pipeline Project of Natural Gas Transmission

WU Ya-zi¹，WANG Zheng^2,3，CHEN Hong⁴

1Resource and Environment Institute, Southwest Petroleum University,Chengdu,Sichuan610500,China;
2College of Water Resource and Hydropower, Sichuan University，Chengdu,Sichuan610065，China;
3Safety, Environment and Technology Supervision Research Institute, Southwest Oil and Gasfield Company, PetroChina，Chengdu, Sichuan610041，China;
4 Sichuan Provincial Bureau of Geological and Mineral Resource Prospecting and Development，Chengdu, Sichuan610081,China

Received:2012-05-24 Revised:2012-10-22 Online:2013-04-01 Published:2013-04-22

Abstract

Abstract:

By applying matter-element theory and extension engineering method，the matter element model of risk assessment of geological disaster was established in this paper. Twelve indexes were selected to be evaluating factors of the synthesis appraising system. The stratification analysis method used to calculate twelve aggregation of evaluating factors was proposed. The risk grading standard of geological disaster was established, and the corresponding value assignment was done. The application on the risk assessment of Longgang-Xixia Branch Pipeline Project of the Second West-to-East Gas Pipeline Project proves that the extenics method is feasible in risk assessment of geological disaster.

Key words: geological disaster, risk assessment, evaluation index, extenics method, matter element model

CLC Number:

P642.2

WU Ya-zi，WANG Zheng，CHEN Hong. Application of Extension Method for Risk Assessment on Geological Disaster in Pipeline Project of Natural Gas Transmission[J]. Geoscience, 2013, 27(2): 482-488.

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Application of Extension Method for Risk Assessment on Geological Disaster in Pipeline Project of Natural Gas Transmission

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