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矿山在掘进、采矿等生产过程中,因地压作用或爆破震动等因素的影响、最常发生冒顶片帮事故。因此,预测检查矿山顶板,对防止冒顶片帮,具有重大意义。 目前,国内使用的一些监测仪器存在一定的缺陷。如使用最早并沿用至今的木滑尺,需要人在危险地段经常观察记录滑尺读数,人身安全
Mines in the tunneling, mining and other production processes, due to the role of pressure or blasting vibration and other factors, the most commonly occurred roof-chip help accident. Therefore, the prediction of mine roof inspection, to prevent the roof tops help, of great significance. At present, some monitoring instruments used in China have some defects. Such as the use of the earliest and still in use wooden slide rule, you need to observe frequently in dangerous locations slider scale reading, personal safety