关键词: 地压控制, 锚杆支护, 影响因素, 分级支护 , 支护参数

Abstract:  In order to control the deep ground pressure reasonably and effectively，a certain mine is selected as the research object，and the existing main support methods are investigated on site to establish a classification support model and a roadway classification support design. The results show that U-shaped steel arch frames，sprayed concrete，anchor nets and bolts are the main support methods at present. The required bolt per unit area of the mining area with average or better stability is 0.67 pieces/m²，and the bolt mesh size could be adjusted to 1.5~2.0 m×1.5~2.0 m. If the surrounding rock is too broken，the bolt mesh should be constructed strictly according to the design. According to the engineering quality of the roadway ore and rock，and then combined with the roadway use time，exposed area and influence degree，the support level index value RQ is obtained. According to the RQ value，the roadway support is divided into 5 levels，and the support form and parameters of each stope are finally determined. This will provide a scientific basis for safe and efficient mining in the deep mining.

Key words: Ground pressure control, Bolt support, Influencing factors, Classification support, Support parameters