通钢板石沟铁矿上青矿区地压与岩移问题的对策

COUNTERMEASURES FOR SOLVING THE GROUND PRESSURE AND SURFACE MOVEMENT IN SHANGQING MINING FIELD OF BANSHIGOU IRON MINE

根据地质调查和地表岩移测试资料分析了通钢板石沟铁矿上青矿区岩移规律 ,得出了矿体上盘围岩渐进崩落和位移过程受断层控制的结论。虽然受岩移的影响目前的陷落角小于设计的陷落角 ;但由于断层出露位置已较准确控制 ,所以西风井的稳定状态不会受到影响。根据井下收敛观测和地压调查的结果 。

Based on the geological investigation and measured ground surface movement,the regularity of displacement in Shangqing Mining Field is analysed.The conclusions are drawn that process of the progressive hanging wall caving and the displacement controlled with the faults.Although the angle of subsidence less than designed one due to the influence of surface movement,but the more accurate position of fault has been controlled.Therefore,the stability of western wind shaft not influenced.From the result of underground convergence measurement and geological investigation,the countemeasures of lessening ground pressure activity are put forward.