Abstract
Taking Zhaogezhuang Coal Mine’s fully mechanized top coal caving test face as the engineering background, through real-time monitoring of the working resistance of the support and the displacement of the top coal and the old roof, the top coal and roof movements at the high dip angle were studied and analysed. The law and the falling characteristics, the initial pressure and the periodic step and pressure strength of the working face are analysed, and the changes and distribution characteristics of the working face pressure along the slope are analysed. Through the research results of this paper, it provides scientific basis for the reasonable parameter design and formulation of the large-inclined working face of the mine, subsequent production process and equipment improvement, and provides technical reference for the mining of similar working faces.
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