煤岩采动裂隙场的成因及其特征分析

The Causes of Coal Rock Crack under the Influence of Adoption and Its Characteristic Analysis

煤层开采后将引起上覆岩层的移动与破断,从而在覆岩中形成采动裂隙。本文把随着工作面的推进,在上覆岩层中形成的一个动态的三维裂隙存在的空间叫裂隙场,分析了煤岩采动裂隙场的成因及其基本情况与特征。为研究煤岩瓦斯耦合、瓦斯突出区域预测及瓦斯的防治奠定了基础,为探索适合在裂隙场抽取利用瓦斯技术、早日实现煤与瓦斯安全共采,提供了科学依据。

After mining will cause the overlying strata movement and broken, and form fractures.ln this paper.Called the dynamic 3D crack ex- isting space in the overlying strata with the working face advancing Coal Rock Crack.Analysis the causes of Coal Rock Crack under the influence of adoption and the basic conditions and characteristics. Provides foundation of the coupling of gas, coal gas outburst zone prediction and gas prevention.Provides scientific basis.of exploring and using the gas in Coal Rock Crack, and The early realization of safety mining of coal and gas