矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2015年
2期
35-38
,共4页
深部大倾角煤层%窄煤柱%沿空掘巷%围岩控制
深部大傾角煤層%窄煤柱%沿空掘巷%圍巖控製
심부대경각매층%착매주%연공굴항%위암공제
deep inclined coal seam%narrow coal pillar%roadway driving along gob%surrounding rock control
针对某矿7121大倾角综采工作面进风巷埋深大、支护困难等问题，运用FLAC3 D数值模拟软件分析了掘巷后围岩的应力分布规律和变形特征，基于沿空掘巷大、小结构的稳定性原理，提出巷道围岩整体性控制措施及高强耦合体系的联合支护方式，并在7121工作面进风巷现场应用。结果表明：巷道掘进和回采阶段围岩变形量在可控范围，达到了围岩控制目的，保证了矿井安全高效生产。
針對某礦7121大傾角綜採工作麵進風巷埋深大、支護睏難等問題，運用FLAC3 D數值模擬軟件分析瞭掘巷後圍巖的應力分佈規律和變形特徵，基于沿空掘巷大、小結構的穩定性原理，提齣巷道圍巖整體性控製措施及高彊耦閤體繫的聯閤支護方式，併在7121工作麵進風巷現場應用。結果錶明：巷道掘進和迴採階段圍巖變形量在可控範圍，達到瞭圍巖控製目的，保證瞭礦井安全高效生產。
침대모광7121대경각종채공작면진풍항매심대、지호곤난등문제，운용FLAC3 D수치모의연건분석료굴항후위암적응력분포규률화변형특정，기우연공굴항대、소결구적은정성원리，제출항도위암정체성공제조시급고강우합체계적연합지호방식，병재7121공작면진풍항현장응용。결과표명：항도굴진화회채계단위암변형량재가공범위，체도료위암공제목적，보증료광정안전고효생산。
Aiming at the problems of deep location and difficult support of the air intake roadway in 7121 deep-inclined fully-mechanized working face, analysis was made on the stress distribution and deformation characteristics of the roadway surrounding rock after the roadway driving along the gob by using FLAC3D numerical simulation software, and based on the principle of the large and small structural stability of the roadway driving along the gob, the integrate control measures for the surrounding rock and the combined support mode of high-strength cable and mesh coupled system were proposed, which was applied in the air intake roadway in 7121 fully-mechanized working face. The results showed that the deformation of the surrounding rock can be effectively controlled during the roadway driving and coal winning, this thus ensured the safe and high-efficient production of the mine.
