深井巷道围岩松动圈影响因素实测分析及控制技术研究

MEASUREMENT AND ANALYSIS OF INFLUENTIAL FACTORS OF BROKEN ZONE OF DEEP ROADWAYS AND STUDY ON ITS CONTROL TECHNIQUE

对千米深井，按５个水平、不同岩性及是否受采动影响的围岩松动圈实测分析揭示了松动圈与开采深度、围岩强度、采动次数、临界开采深度、支护难度等的关系，进而探讨了深井、大松动圈巷道围岩合理控制技术，据此进行了工业性试验，取得良好的效果。

The change in the thickness of broken zone in surrounding rock of roadways with mining depth, surrounding rock strength and extraction is discussed on the basis of observation data for deep roadways located at different levels and in different rocks. Finally, the control technique of surrounding rocks is discussed and the satisfying results are acquired in an industrial trial.