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本文根据高速公路隧道运行环境特性,提出了隧道路段长度研究范围。依据隧道运行环境风险影响因素和评价指标选取原则,运用德尔菲法和聚类分析法提取隧道运行环境主因素,从道路环境指标和气候环境指标两个方面建立了三层次、六个子因素集的高速公路隧道运行环境安全评价指标,并对各指标进行了分析和对比,为隧道运行环境的分析和评价提供了参考依据。
According to the characteristics of expressway tunnel operating environment, this paper puts forward the research scope of tunnel section length. According to the principle of risk factors of tunnel operation environment and selection of evaluation indexes, Delphi and cluster analysis are used to extract the main factors of tunnel operation environment. Three levels and six sets of sub-factors are established from two aspects of road environment index and climate environment index Highway tunnel operating environment safety evaluation index, and each index is analyzed and compared, which provides a reference for the analysis and evaluation of tunnel operating environment.