铁路工程地质勘察钻孔质量的层次-模糊综合评判

Hierarchy-Fuzzy Comprehensive Evaluation on Drilling Quality of Geological Investigation for Railway Engineering

摘要:

通过对铁路工程地质勘察钻孔质量评价因素的多层次、多因素研究，建立铁路勘察钻孔质量综合评判指标体系层次模型，运用层次分析法确定每个影响因素的权重，并采用模糊数学基本原理对铁路钻孔质量进行综合评判。在评判模型中，综合考虑影响铁路工程钻探质量的定量、非定量指标，以其成孔条件、钻探记录、原位测试为基本准则层，根据实际现场判断手段确立每个准则下的指标层，将指标层针对评判分级标准转换成隶属度矩阵，利用模糊数学原理综合评判铁路钻孔钻探质量等级。

关键词:铁路工程;地质勘察;钻孔质量;层次分析法;模糊数学;模糊综合评判

Abstract:

Through the study on multilevel, multivariate in the evaluation on the quality of geological investigation drilling for railway engineering, the comprehensive evaluation index system hierarchical model is established for investigation drilling quality of railway engineering, the weight of each affecting factors is determined by AHP and the drilling quality of railway engineering is judged on the basis of the basic principles fuzzy mathematics. In the evaluation modle, the quantitative and non quantitative indexes which affect the drilling operation quality of railway engineering are comprehensively taken into account; taking the hole formation conditions, drilling record, situ measurement as basic criterion layer, based on the situ jugdement, each index layer under criterion layer is determined, which is then converted into membership matrix according to evaluation grading standards, the comprehensive evaluation on drilling quality grade for railway engineering is made by fuzzy mathematics principle.

Key words:railway engineering; geological investigation; drilling quality; analytical hierarchy process; fuzzy math; fuzzy comprehensive evaluation