Practice of Optimizing and Adjusting the Single Width of Railed Transport Inclined Shaft in Dabashan Tunnel

This thesis studies the optimization of the right width of the ventilation inclined shaft of Dabashan Tunnel, according to the results of the tunnel site investigation, combined with the mountainous terrain to adjust the location of the inclined shaft opening, and the intersection location with the main line, optimize the original design of the inclined shaft of 670m, longitudinal slope -33%, to an inclined shaft of 1,582m, combined longitudinal slope -9.6%, to achieve the purpose of the change from the tracked to the rail-free transportation system, this paper analyzes the technical advantages and disadvantages of the before and after optimization. This paper analyzes the technical advantages and disadvantages before and after optimization, and discusses the impact of this change on the construction of this project.