【摘要】 以内蒙某矿区特殊工程实例为背景,针对煤层赋存浅、地表堆放有排土场等特殊情况,采用露天转地下无保护煤柱方案进行开采。以生产效益、避免生产中灾害的发生为原则,应用数值模拟方法对相关开采方案进行了系统的模拟分析与优化设计,最终得出从里向外的开采推进方案可以减小露天边坡的滑塌破坏,确保工作面的正常推进和安全生产。更多还原

【Abstract】 Taking a special mining engineering in Inner Mongolia as background,aiming at the shallow occurrence of coal seam and the stacking dump of earth surface and other special circumstances,we use unprotected coal pillar from open- pit into underground mining scheme. With the principle of production efficiency and avoiding the disaster in production,the simulation analysis and the optimization design of related mining project were carried out by using the method of numerical simulation. Finally,we achieve that the promote project of mining from the inside out can reduce the slumping destruction of open- pit slope to ensure the normal advance and safety production of coal face.更多还原