摘要
煤层重复采动的覆岩破坏规律较为复杂,尤其是面临浅埋深薄基岩层下地表水体下的安全开采。以某矿实际地质情况为基础,通过构建数值模拟模型及现场实测反演确定出2-3煤层开采时的覆岩力学参数,在此基础上,进行3-1煤层重复开采的数值模拟分析,最终确定了重复采动影响下的覆岩破坏高度,并论证了该区域的重复开采的安全可行性。
The overlying strata failure law of repeated coal-mining under surface water body of shallow thin bedrock was complex. Based on the actual geological conditions of a certain coal mine, the mechanical parameters of the overlying strata were determined by comparative analysis of the numerical simulation model and field measurement of 2-3 coal seam. The overlying strata damage height of repeated coal-mining was determined by the numerical simulation analysis of 3-1 seam. The safety and feasibility of repeated coal-mininz was demonstrated.
出处
《煤炭技术》
CAS
北大核心
2017年第4期184-186,共3页
Coal Technology
基金
国家科技重大专项资助项目(2011ZX05064)
关键词
浅埋深薄基岩
数值模拟
覆岩破坏
重复开采
shallow thin bedrock
numerical simulation
overlying strata failure
repeated mining
