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基于物元可拓基本理论,建立了公路隧道围岩分级的物元可拓模型,分析了该模型用于公路隧道围岩分级的可行性。利用建立的公路隧道围岩分级的物元可拓模型,根据鸡场坪公路隧道的工程实际,选取了影响该隧道围岩稳定性的4个主要因素,对该隧道具有代表性的4段围岩进行了质量分级,得到的分级结果与实际情况相符,证明了物元可拓理论在公路隧道围岩分级中应用的有效性。
Based on the basic theory of matter-element extension, a matter-element extension model of surrounding rock classification of highway tunnel is established, and the feasibility of the model for the classification of surrounding rock of highway tunnel is analyzed. According to the engineering practice of the Jichang Ping Highway Tunnel, four factors that affect the stability of the surrounding rock of the tunnel are selected by using the matter-element extension model of surrounding rock classified by the highway tunnel. Four representative sections of the tunnel, Rock quality grading, and the grading results obtained are in line with the actual situation, which proves the validity of the matter-element extension theory applied to the surrounding rock classification of highway tunnels.