Design and Reliability Research of Supporting Structure for Deep Mine Vertical Drainage System
S. B. Zhang †‡††, X. W. Zheng †, Z. F. Liu ‡§,L. J. Feng ‡††
† China University of Mining & Technology, Beijing, 100083, China
‡ Henan Engineering Laboratory for Mine Drainage Technology & Equipment, Zhengzhou 450016, Henan, China
§ Zhengzhou University, Zhengzhou 450001, Henan, China
†† Henan Rescue Center for Mine Flood Disaster, Zhengzhou 450016, Henan, China
ABSTRACT: The deep mine vertical drainage system is characterized with large running loads and high requirements for the rigidity and stability of supporting structure, so the three-dimensional solid model of supporting structure is built on the basis of designing the supporting structure and the essential sizes. Take the 800-metre deep mine as an example. Based on static load analysis, Water hammer stress under different working conditions are analyzed by the transient analysis software of water hammer, Obtain the load of supporting structure under conditions of water hammer. The assessment of its reliability and the prediction of fatigue life are made according to the reliability evaluation of the supporting structure model made by ansys workbench software of finite element analysis. The reliability and safety of the supporting structure are verified by its application in projects, which provides guidance for the design of similar supporting beams.
Keywords : Deep mine; Vertical drainage system; Design of supporting structure; Load analysis; Reliability research
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