矿业工程研究
礦業工程研究
광업공정연구
MINERAL ENGINEEERING RESEACH
2011年
4期
40-43
,共4页
采空区%失稳模式%数值分析%可视化验证
採空區%失穩模式%數值分析%可視化驗證
채공구%실은모식%수치분석%가시화험증
cavity%instability mode%numerical analysis%measured verification
针对某铜矿典型采空区的工程实际，运用FLAC^3D软件对采空区失稳进行模拟分析，确定了采空区分别在静力作用和动力扰动条件下的失稳模式．结果表明，该矿采空区在静力条件下主要为矿柱剪切破坏失稳，在动力扰动条件下则表现为顶板剪切破坏和矿柱剪切破坏复合失稳，实测结果与数值分析结果一致．为矿山有效开展采空区安全分析及处理提供可靠的技术支持．
針對某銅礦典型採空區的工程實際，運用FLAC^3D軟件對採空區失穩進行模擬分析，確定瞭採空區分彆在靜力作用和動力擾動條件下的失穩模式．結果錶明，該礦採空區在靜力條件下主要為礦柱剪切破壞失穩，在動力擾動條件下則錶現為頂闆剪切破壞和礦柱剪切破壞複閤失穩，實測結果與數值分析結果一緻．為礦山有效開展採空區安全分析及處理提供可靠的技術支持．
침대모동광전형채공구적공정실제，운용FLAC^3D연건대채공구실은진행모의분석，학정료채공구분별재정력작용화동력우동조건하적실은모식．결과표명，해광채공구재정력조건하주요위광주전절파배실은，재동력우동조건하칙표현위정판전절파배화광주전절파배복합실은，실측결과여수치분석결과일치．위광산유효개전채공구안전분석급처리제공가고적기술지지．
Aimed at engineering reality of certain copper mine typical cavity, this paper adopts the software of Flac3D to simulate and analyze the instability cavity, and it determines the possible instability modes in static and dynamic disturbance conditions. Results show that it exists the failure mode of cavity under the condition of static mainly for bearer shear failure, while under dynamic disturbances it does mainly for composite the roof shear failure with bearer shear failure. The measured results and the numerical analysis results are consistent, which provides reliably technical supports for effective safety analysis and cavity disposal.
