JXY－4型振弦式双模压力盒在矿块崩落法地压监测中的应用

APPLICATION OF JXY-4 PRESSURE CAPSULE OF VIBKATING- WIRE TO GROUND PRESSURE MONITORING OF BLOCK CAVING

振弦式双膜压力盒由于其卓越的测试性能在地压监测工作中获得了广泛的应用，在铜矿峪铜矿矿块崩落采矿法攻关试验中，采用这一监测技术对出矿巷道地压变化规律进行了系统的监测研究，摸清了电耙巷遭地压显现特征，指出了矿块崩落法底部结构地压变化规律，为矿块崩落法地压控制提供了依据．

Being of superior measuring quality,JXY-4 Pressure Capsule ofVibrating-Wire has found extensive application in ground pressure monitoring。Systematic study on and monitoring of ground pressure of block caving werecarried out at Tongkuangyu Copper Mine with the help of the capsule.Thebehaviour of rock stress and changing law of ground pressure of block cavinghave been discovered which provides practical basis for ground control of blockcaving