530急倾斜综采面煤壁片帮分析与控制技术研究

Research of 530 Steeply Inclined Mining Coal Wall Spalling and Control Technology Analysis

对530急倾斜综采面煤壁片帮过程进行了深入研究,对仰斜开采和顶板垮落步距之间的关系进行了探讨。并通过数据验算分析找到了伪仰斜倾角、煤层倾角与大倾角工作面片帮的关系,得出了大倾角工作面发生片帮的近似临界值。通过统计分析不同仰角情况下片帮频次,找出了工作面煤壁的压力敏感区域位置,并统计分析了不同仰斜倾角下片帮的情况。

To study 530 steeply inclined mining coal wall mechanism the upward inclined mining and roof caving interval dynamic are discussed. The relationship between pseudo back through the data calculation analysis rest inclined angle and dip angle of coal seam with large dip angle are studied,the relationship between the supports of the large dip angle is obtained approximate critical value. Through statistical analysis of different elevation of the lower frequency,find out the working face of coal wall pressure sensitive area location,and statistical analysis of the different oblique angle of little help.