With the rapid development of the economy and the continuous advancement of industrial production,the demand for coal as the main energy source is showing a rapid growth trend.The coal mine excavation face is the main battlefield of coal production,ensuring the reasonable excavation speed of coal mining face is of great significance for improving coal mining production efficiency and reducing production costs.Previous research on excavation speed mainly focused on technical means to improve excavation speed,neglecting the rational selection of excavation speed.Therefore,various factors should be comprehensively considered to determine the reasonable excavation speed of the coal mine excavation face.
维普
万方数据