【摘要】 根据贵州松和煤矿的具体地质条件,从技术、安全、经济因素等方面综合考虑,得到可行的开采顺序方案,采用UDEC数值模拟和构建多目标分析模型进行了优化比较,得出了不同的开采顺序其顶板内的应力集中程度和顶板下沉量是不同的,并优化确定了合理的煤层开采顺序,即依次开采3#、9#、6#、4#煤层能够保证顶板应力场在较低的范围,不出现较为强烈的矿压显现。更多还原

【Abstract】 Based on the geological conditions of Songhe Coal Mine in Guizhou province,comprehensive consideration from the technical,safety,economic factors,the study designed the proper mining sequence for the coal mine. Numerical simulation with UDEC software and building a multi-objective analysis model is use to compare the different programs,and found the stress concentration of the coal seam roof and roof vertical displacement is different with different mining sequence,and the study optimized the reasonable coal seam mining sequence,and analysis showed the stress concentration of the coal seam roof in a low range with the mining sequence of 3#,6#,9#,4#,and the pressure behavior phenomenon was not strong.更多还原