| 长螺旋钻机成桩混合料堵管的模糊故障树分析 |
| 投稿时间：2023-10-22 修订日期：2023-12-17 点此下载全文 |
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| 中文摘要:在钻探工程施工过程中,不可避免地会出现机械故障。采用故障树分析其原因是常用的方法之一。但工程施工中,往往数据不足或不注意保存这些数据,实际应用时难以赋值,只能进行定性分析。针对工程施工机械出现故障的模糊性和不确定性,用模糊数描述底事件的发生概率,提出一种基于三角模糊数的工程施工机械故障树分析方法。该方法通过专家、现场技术人员及操作人员的经验构造三角模糊数描述各底事件发生的概率区间,通过计算三角模糊数的中位数重要度,按重要度大小对故障原因排序,作为制定预防措施的依据。最后将其应用于长螺旋钻机成桩混合料堵管的原因分析,按模糊重要度对故障有针对性地制定预防措施。结果表明：重要影响因素排序与现场技术人员及操作人员的定性分析与判断相符。 |
| 中文关键词:长螺旋钻机 混合料堵管 模糊故障树 三角模糊数 中位数 |
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| The Fuzzy Fault Tree Analysis of Mix-malarial Blocking Pipein Pile-forming with Long Spiral Drill |
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| Abstract:In the process of drill engineering construction, the mechanical failure will inevitably appear. Using a fault tree to analyze its causes is one of the common methods. But in the project construction, the data is often insufficient or do not pay attention to the preservation of these data, the actual application is difficult to assign value, can only be qualitative analysis. In view of the fuzziness and uncertainty of engineering construction machinery failure, the occurrence probability of the bottom event is described with fuzzy number, and a fault tree analysis method of engineering construction machinery based on triangular fuzzy number is proposed. This method uses the experience of experts, field technicians and operators to describe the probability interval of each bottom event. By calculating the median importance of the triangular fuzzy number, ranking the causes of the fault according to the importance degree, serving as the basis for formulating preventive measures. Finally, it is applied to the reason analysis of pipe plugging of pile mixture of long spiral drill, and makes targeted preventive measures for faults according to the fuzzy importance. The results show that the ranking of important influencing factors is consistent with the qualitative analysis and judgment of the field technicians and operators. |
| keywords:long spiral drill pipe plugging of mixture fuzzy fault tree triangle fuzzy number median |
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