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一、前言 随着煤炭生产迅速发展和开采水平逐步加深,瓦斯也随之增大,煤和瓦斯突出日趋频繁、强度也越来越大。使人们从实践中逐渐认识和了解到某些煤与瓦斯突出的客观规律,发展了防止煤与瓦斯突出新的科学技术和安全措施,保证了安全生产。例如:开采解放层,水力冲孔,等安全技术措施便是其例。在研究和考察这些安全措施效果中,使我们得知突出煤层的地压,瓦斯,应力等一系列参数的重大变化、都可以由岩石的移动变化所表现出来。因此,研制深孔岩石位移遥测仪是便于观测与研究煤层变形的规律,对考察水力冲孔,开采解放层的效果和研究煤与瓦斯突出机理均有重大意义(如图一)。
I. Introduction With the rapid development of coal production and mining levels gradually deepened, gas will also increase, coal and gas outburst more and more frequent, strength is also growing. Make people gradually understand and understand the objective law of some coal and gas outburst from practice, develop new science and technology and safety measures to prevent coal and gas outburst, and ensure safety in production. For example: mining liberation, hydraulic punching, and other safety technical measures is its case. Studying and examining the effects of these safety measures has led us to notice that significant changes in a series of parameters such as ground pressure, gas, and stress in the outburst coal seam can all be manifested by changes in rock movement. Therefore, the development of deep-hole rock displacement telemetry is easy to observe and study the law of coal seam deformation. It is of great significance to study the hydraulic punching, the effect of mining the liberated layer and the study of mechanism of coal and gas outburst (Figure 1).