摘要
以华东某矿为研究原型,基于条带开采煤层情况下对地表及岩层破坏程度小的特点,通过FLAC3D数值模拟研究了工业广场煤柱条带开采时的沉陷规律,着重分析了回采率不变、采宽变化情况下井筒的沉陷变化规律。最后通过工程实例的检验,确定了条带开采在工广煤柱开采中应用的可行性,为其他相同地质采矿条件的工广煤柱开采提供了技术支持。
The research takes one mine in the east of China as the research prototype,based on the characteristics of the low degree of surface and rock failure in the condition of the strip mining, the research studies on the strip mining method for the coal pillar in industrial square by FLAC3 Dnumerical simulation. Under the condition of constant recovery rate, this paper analysis the variation law of wellbore by changing the mining width. Finally, through the validation of an instance, the feasibility of the application of strip mining in coal pillar is determined. The study has accumulated valuable technical support for the mining for the coal pillar in industrial square in the same geological conditions.
出处
《煤炭技术》
CAS
北大核心
2016年第2期15-18,共4页
Coal Technology
基金
国家自然科学基金资助项目(41272389)
江苏高校优势学科建设工程资助项目(SZBF2011-6-B35)
关键词
工广煤柱
条带开采
数值模拟
coal pillar in industrial square
strip mining
numerical simulation
