山西焦煤科技
山西焦煤科技
산서초매과기
Shanxi Coking Coal Science & Technology
2015年
9期
48-50
,共3页
倾斜薄煤层%覆岩活动规律%顶板压力%控顶设计
傾斜薄煤層%覆巖活動規律%頂闆壓力%控頂設計
경사박매층%복암활동규률%정판압력%공정설계
Inclined Thin Seam%Overlying strata activity rule%Roof pressure%Roof control design
针对倾斜薄煤层开采面临的难题,以某矿开采工作面为背景,运用RFPA2D( Rock Frac-ture Analysis)软件,分析了工作面沿走向、倾向的覆岩活动规律及工作面上覆岩层位移情况,得出了倾斜薄煤层开采覆岩活动规律和覆岩应力、位移演化规律。通过数值模拟结果获得工作面控顶设计中顶板压力的确定方法,为工作面的控顶设计提供了依据。
針對傾斜薄煤層開採麵臨的難題,以某礦開採工作麵為揹景,運用RFPA2D( Rock Frac-ture Analysis)軟件,分析瞭工作麵沿走嚮、傾嚮的覆巖活動規律及工作麵上覆巖層位移情況,得齣瞭傾斜薄煤層開採覆巖活動規律和覆巖應力、位移縯化規律。通過數值模擬結果穫得工作麵控頂設計中頂闆壓力的確定方法,為工作麵的控頂設計提供瞭依據。
침대경사박매층개채면림적난제,이모광개채공작면위배경,운용RFPA2D( Rock Frac-ture Analysis)연건,분석료공작면연주향、경향적복암활동규률급공작면상복암층위이정황,득출료경사박매층개채복암활동규률화복암응력、위이연화규률。통과수치모의결과획득공작면공정설계중정판압력적학정방법,위공작면적공정설계제공료의거。
Aiming at the problem of inclined thin seam mining, a coal mine working face is as the background, utilizes RFPA2D ( Rock Fracture Analysis) software, analyzes the overlying strata activity rule and displacement suti-ation.Obtains the overlying strata activity rule, overlying strata stress and displacement evolution rules in inclined thin seam.Through the numerical simulation results obtains the determination method of roof pressure in work surface roof control design, it provides the evidence for roof control design of working face.