The Influence of Working Face Mining Speed on Surface Subsidence
To analyze the impact of mining speed on surface subsidence in working faces,based on the probability integral method static subsidence prediction model,it introduces time parameters to establish the probability integration method dynamic pre-diction model.By using mathematical models,it analyzes the relationship between mining speed and subsidence,subsidence speed,and subsidence acceleration,and expresses it intuitively through Matlab.The mining speed of the working face has a significant im-pact on the surface subsidence,subsidence initiation time,subsidence time,time to reach maximum subsidence,subsidence speed,maximum subsidence speed,subsidence acceleration,maximum subsidence acceleration,and time to reach maximum subsidence ac-celeration.The relationship between mining speed and surface deformation is non-linear.When the mining speed reaches a certain threshold,its correlation with surface deformation becomes worse.
probability integral methodsubsidencesubsidence speedsubsidence acceleration
万方数据
维普
