MATLAB在小净距隧道塌方风险模糊层次分析评价中的应用

Application of MATLAB in Fuzzy Analytic Hierarchy Process of Small Spacing Tunnel Collapse Risk

为对隧道施工中造成塌方的因素进行定量的综合评价,结合目前地铁浅埋隧道施工特点,根据造成隧道塌方的因素,从主客观角度分别进行分析,建立了关于地质情况、施工、管理等4个单元、20项指标的多因素多级指标评价体系。根据层次分析法原理,结合模糊数学的理论,运用MATLAB软件对隧道塌方成因进行综合评价。结果表明:(1)设计欠妥、施工不当是造成浅埋隧道塌方,影响隧道施工安全的首要因素,其次是不良地质、地形等因素;(2)将模糊层次分析法应用于隧道塌方成因的评价分析中,取得了不错的效果,证明是切实可行的。

For tunnel construction caused by collapse of the factors quantitatively comprehensive evaluation,combined with the subway shallow buried tunnel construction characteristics,according to the causing factors of the tunnel collapse,from subjective and objective perspectives analysis established on geological conditions,construction,management,and other four units and20indicators multivariate multilevel index evaluation system.Based on the principle of analytic hierarchy process and the theory of fuzzy mathematics,the MATLAB software was used to evaluate the causes of the landslide.Results show that:(1)design defect,improper construction is caused by shallow buried tunnel collapse,the primary factors that influence the safety of tunnel construction,followed by unfavorable geology,topography and other factors;(2)fuzzy hierarchy analysis method is applied to the evaluation and analysis of the causes of tunnel collapse,not wrong that is feasible.