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煤层构造应力场与煤与瓦斯突出和煤层裂隙分布带范围密切相关.黄陵矿区煤层中瓦斯含量较高,分布不均是矿井安全生产的重要隐患.基于该区地震、地质和测井数据,本文对三维地震数据体进行精细的构造解释,用反演法建立了地质力学模型,并确定岩石力学参数,运用有限元理论和弹性计算力学对矿区三维构造应力场进行了数值模拟,得到黄陵矿区2号煤层地质构造带应力场分布特征,模拟结果与井田宏观及微观构造信息一致.这对预测该区裂隙分布带,煤与瓦斯突出等具有重要的指导意义.
The tectonic stress field of coal seam is closely related to the range of coal and gas outburst and the fracture distribution zone of coal seam.The high gas content and uneven distribution of coal seam in Huangling mining area are important hidden dangers of mine safety.Based on the seismic, geological and well logging data, In this paper, a detailed structural interpretation of the 3D seismic data body is carried out. The geomechanical model is established by inversion method and the rock mechanics parameters are determined. The three-dimensional tectonic stress field of the mining area is numerically simulated by finite element theory and elastic calculation mechanics. The distribution of stress field in the geological tectonic zone of No. 2 coal seam in the mining area is consistent with the macroscopic and microstructural information in the minefield, which is of great guiding significance in predicting the fracture distribution zone, coal and gas outburst in this area.