摘要
为准确地评价油气长输管道坡面水毁的失效可能性,保障管道运行安全,提出一种基于熵权物元可拓理论的评价方法。建立管道坡面水毁的失效可能性评价体系;为减少主观因素影响,采用熵权法计算指标权重值;引入物元可拓理论定量地评价失效可能性等级。评价结果表明,4处灾害点的管道坡面水毁失效可能性等级分别为Ⅲ级(中等)、Ⅴ级(低)、Ⅴ级(低)和Ⅱ级(较高),基本与客观实际相符。
In order to accurately evaluate the possibility of long-distance oil/gas pipeline failure caused by flood damage of slope and ensure the safety of pipeline operation, an evaluation method based on entropy weight and extenics theory is proposed, and the evaluation model is established. The weights of indexes are calculated using entropy weight method to reduce the effects of subjective factors. The grades of the failure possibility can be quantitatively evaluated by extenics model. The evaluation results show that, the slope flood damage failure possibility grades of the pipeline at four places are middle, low, low and high respectively, which are in accordance with real circumstances.
出处
《石油工业技术监督》
2015年第6期47-50,60,共5页
Technology Supervision in Petroleum Industry
关键词
油气管道
坡面水毁
失效可能性
熵权
物元理论
oil/gas pipeline
flood damage of slope
failure possibility
entropy weight
matter-element theory
