CAJ | 학술논문

以白须公1号隧道为背景,运用有限元程序MIDAS/GTS模拟了隧道穿过特大溶洞时分台阶开挖的施工过程,分析了隧道在有溶洞条件下的施工力学行为,为关键部位加强支护提供理论依据。分析结果表明：该溶洞围岩自承能力较好,隧道衬砌连接处会出现应力集中,施工过程中要确保支护结构的整体稳定。
이백수공1호수도위배경,운용유한원정서MIDAS/GTS모의료수도천과특대용동시분태계개알적시공과정,분석료수도재유용동조건하적시공역학행위,위관건부위가강지호제공이론의거。분석결과표명：해용동위암자승능력교호,수도츤체련접처회출현응력집중,시공과정중요학보지호결구적정체은정。
Based on the excavation of Baixugong No.1 tunnel,a numerical analysis concerning the construction process of the tunnel crossing a especially big limestone cave is carried out by using the MIDAS/GTS software system,analyzing the construction mechanics behavior of tunnel under the condition of karst cave,and provide theoretical basis for reinforcing support in key position.The results of numerical modeling show that the self-bearing ability of the karst cave is well,and stress concentration appeared on the connection of supporting structure,so to ensure the overall stability of supporting structure in the process construction.