Abstract:
Against the backdrop of increasing mine scales in China, this paper takes the main shaft tower of Menkeqing Mine as an example to introduce the key architectural and structural design points of double-hoisting shaft towers, which feature high hoisting capacity, high lifting height, and significant building height. Firstly, the advantages and disadvantages of different structural types of shaft towers are compared and analyzed, leading to the selection of a reinforced concrete box-frame structure as the appropriate structural type for such towers. Secondly, the principles of plane and vertical layout of the shaft tower and the factors to be considered during the design process are systematically elaborated. Then, the key design points of the superstructure of the shaft tower are introduced from the aspects of lateral stiffness control of floors and the structural design of the hall floor, proposing measures to ensure uniform changes in the lateral stiffness of the tower floors. Finally, for shafts constructed using the freeze-thaw method, it is proposed that the shaft tower should adopt a reinforced concrete cast-in-place pile foundation, which not only ensures the safety of the shaft tower but also shortens the construction period. Additionally, some control parameters for pile arrangement are provided.