Abstract
Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions
Highlights
Natural gas is of great significance to the economic development and environmental protection of all countries
Results demonstrate that the risk assessment models constructed with different measurement functions can effectively reduce the uncertainty of urban gas pipeline risk assessment, but for the same object, the risk level of the linear measurement model in 4# pipeline is lower than other measurement functions, and the risk level of sinusoidal measurement model in 8# pipeline is higher than other measurement functions
The conclusions obtained from this study clarify the application conditions of unascertained measure theory in urban gas pipeline risk assessment, which helps to reduce the uncertainty in the assessment process and improve the accuracy of the assessment results
Summary
Natural gas is of great significance to the economic development and environmental protection of all countries. Gas pipeline is the most important mode of natural gas transportation [2], and it has become an important part of urban facilities and resources due to the characteristics of quick, convenient, economical, and reliable. China's natural gas pipeline has developed rapidly. Through more than 50 years of hard work, China's gas pipeline industry has made great achievements. By the end of 2019, China's natural gas pipeline reached 87 000 km, and gas transmission can exceed 350 billion cubic meters per year. With the rapid construction of gas pipe network and the aging of some pipelines, safety problems in gas pipeline systems have become increasingly prominent
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