区域构造应力场对煤与瓦斯突出影响的数值模拟分析

依据地质动力区划方法，对鹤壁八矿进行Ⅰ～Ⅴ级活动断裂划分，确定了区域构造的特征。分析了煤层的顶板岩性和构造断裂特点，并在此基础上建立了构造应力计算模型。结合对矿区地应力测量和岩体应力状态分析，确定了岩体应力状态的分布规律。通过对结果的分析，认为区域构造应力场控制鹤壁八矿地应力的分布状态，从而决定煤与瓦斯突出呈区域性分布。确定了易发生煤与瓦斯突出的应力升高区的位置，为开采煤层时何时何地采取防突措施提供了科学依据。

Numerical Simulation Analysis of Influence of Regional Tectonic Stress Field on Coal and Gas Outburst

Abstract： In the eighth mine of Hebi, Ⅰ～Ⅴ class active faults are divided, with characteristics of regional structure according to geo-dynamic division. The roof rock types of Ⅱ-1 coal seam and the characteristics of tectonic faults are analysed. Then tectonic stress calculation model are established. Incorporated with in-situ stress measurements and rock stress analysis, rock stress distributions are found. Through the analysis of the result, stress distribution of the eighth mine of Hebi is controlied by regional tectonic stress field which determines the regional distribution of coal and gas outburst. The stress-rising location where coal and gas outburst are easy to occur are found. Scientific foundation is provided for when and where to take measures to prevent coal and gas outburst during coal mining.