Abstract:As the throat project of deep mining in the mine, the construction period of the shaft controls the whole mine construction period, and the safety and stability of its service period restricts the normal safety production of the mine. Based on the auxiliary shaft project of Sanshandao gold mine, this paper studies and discusses the support concept, support scheme and construction innovation of large-diameter deep-buried shaft with diameter of 105m and buried depth of 1915m. Through in-depth study of domestic and foreign support theory, breaking through the traditional design concept, adopting the design concept of new process pressure relief and making full use of the role of surrounding rock, this paper studies the support scheme of large buried deep shaft, and discusses the innovation direction of deep well construction. The research results of this paper can provide reference application for the support design of bottleneck engineering in deep development and utilization, and provide important reference for the construction technology of deep well and related deep well engineering below 2500m.
