深部大倾角综放面上覆煤岩裂隙场演化物理模拟

Study on Physical Simulation of Cracking Development Variation Law of Overlying Strata over Fully Mechanical Coal Caving Mining Faces During Exploitation Process

以具有"深部大倾角"特性的开滦赵各庄矿为研究对象,在现场调研和实测的基础上,通过物理模拟对上覆煤岩裂隙场规律进行研究。研究的思路和方法不同于以往随工作面推进方向进行的动态裂隙场规律研究,而是沿倾向方向对其研究,对以往裂隙场发展规律进行了验证和完善,并得出了在采动影响下深部大倾角裂隙场发展演化的一些特有的规律,为瓦斯抽放和煤矿安全生产提供一定的理论支持和指导。

Zhaogezhuang mine of the Kailuan group is chosen as the study object with the characteristic of ＂steeply dipping seams ＂ Based on actual data collected and measured in Zhaogezhuang mine, some of the cracking development variation law of overlying strata during exploitation process is gained through physical simulation. In addition, the approach and method of the paper is different from the former in studying the law of the cracking development variation that studied the law along mining face, and in this paper the law is studied from the inclination of coal - seam. Therefore, the results discovered in this paper are the verification and perfection of the former study, and these particular results also provide some of the theoretical basis and guidance for gas extraction technology and mine safety.