断裂构造复杂区探查与灾害防治技术研究

Research on Exploration and Disaster Prevention Technology in Complex Fault Structure Area

根据某煤矿23_(上)631工作面实际地质条件为基础,运用地面瞬变电磁和三维地震等先进的物探综合探查技术手段,查明影响工作面安全开采的隐蔽致灾地质因素,并结合FLAC^(3D)数值模拟软件,针对工作面回采期间断层防水煤柱留设问题进行分析。通过留设不同宽度的保护煤柱,分析断层的应力变化、位移变化及塑性破坏情况,得出断层煤柱的合理留设宽度。为工作面安全开采提供可靠的技术支持和保障,确保实现工作面的安全开采。

According to the practical geological conditions of a mine on 23631 face, on the basis of using the transient electromagnetic and 3D seismic advanced comprehensive exploration technology such as geophysical prospecting method, find out the affecting the safe mining of the coal face hidden disaster geologic factors, combined with FLAC^(3D) numerical simulation software, in view of the mining face during the fault waterproof pillar design problems are analyzed. The reasonable width of the coal pillar is obtained through the analysis of the stress change, displacement change and plastic failure of the protection pillar with different widths. To provide reliable technical support and guarantee for safe mining of working face, to ensure the realization of safe mining of working face.