摘要
以准东煤田大井2~#煤矿B_1巨厚煤层分层开采为工程背景,采用关键层和材料力学相关理论及UDEC数值模拟对煤层分层采出后覆岩破坏进行研究。UDEC数值模拟得出煤层全部采出后覆岩的最终破坏高度约为256.8 m,验证了理论计算的合理性。
In Zhundong coalfield Dajing 2~# coal mine B_1 deeply buried extra thick coal seam as the engineering background, based on the theory of key strata and material mechanics and UDEC numerical simulation, the failure law of overlying strata after coal seam slicing is studied. UDEC numerical simulation shows the ultimate failure height of the overburden rock after coal mining is about 256.8 m,which verifies the rationality of the theoretical calculation.
出处
《煤炭技术》
北大核心
2017年第7期34-37,共4页
Coal Technology
基金
新疆自治区科研机构创新发展专项资金项目(20150130)
新疆自治区基本科研业务费专项资金资助项目(kygy2016221)
关键词
深埋巨厚煤层
分层开采
覆岩破坏
deeply buried thick coal seam
layered mining
overburden failure
