矿井瓦斯评价与预测的构造动力学方法

通过对矿井瓦斯赋存的构造控制、构造应力场演化及构造煤结构演化与瓦斯特性耦合机理的综合分析，认为当前在矿井瓦斯赋存、分布规律及突出危险区带的有效预测方面的研究还有待深入。在汲取前人研究成果的基础上，提出矿井瓦斯突出的构造动力学评价与预测的思路及方法，即以区域构造-矿井构造-煤层变形-构造煤结构-瓦斯特性及其相互作用机理分析为总体思路．将现代构造地质学理论和方法引入矿井构造研究，并与模糊综合评判、灰色系统、分形理论、数值模拟和计算机技术相结合，以揭示构造煤发育、分布规律及其构造动力学控制机理，系统进行不同类型构造煤瓦斯特性研究，探讨不同结构构造煤的含气性、透气性和气体赋存状态，以构造煤分布特征作为瓦斯突出危险性评价与预测的基础，建立矿井瓦斯突出预测预报的构造动力学评价方法体系。

Structural Dynamic Method of Mine Gas Evaluation and Prediction

Through comprehensive analysis of mine gas hosting structural control, structural stress, tectonic coal structure evolution and gas characteristic coupling mechanism, considered that in studies of mine gas hosting, distribution pattern and bursting hazard region effective prediction need to be deepened at present. Based on previous studies, we have advanced thoughts and methods on mine gas bursting tectonic dynamic evaluation and prediction. That is to take regional structure, minefield structure, and coal seam deformation, tectonic coal texture, gas characteristics and interaction mechanism between them, combined with integrated fuzzy evaluation, gray system, fractal theory, numerical simulation and computer technology to unveil tectonic coal development, distribution pattern and structural dynamic control mechanism. Systematically carried out studies on different structure coal gas characteristics, and discussed gas-bearing property, permeability and occurrence mode of different tectonic coals. To take the tectonic coal distribution characteristics as the base of gas burst hazard assessment, and established a mine gas burst prediction and forecasting structural dynamic evaluation method system.