矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2014年
5期
47-50,55
,共5页
覆岩破断%楔形裂隙发育区%高位钻孔%参数优化
覆巖破斷%楔形裂隙髮育區%高位鑽孔%參數優化
복암파단%설형렬극발육구%고위찬공%삼수우화
overburden strata rupture%development zone of wedge-shaped fissure%high-level borehole%parameter optimization
根据祁东煤矿6135工作面开采工程条件,运用相似材料模拟实验方法,对上覆岩层随工作面推进时的破断规律进行研究,结合经验公式和相似模拟结果综合判定了工作面上覆岩层垮落带高度范围为0~7.1 m,断裂带高度范围为7.1~30.1 m；采用FLAC3D数值模拟软件模拟得出覆岩裂隙发育区角度范围,为优化高位钻孔布置参数提供了可靠的依据。
根據祁東煤礦6135工作麵開採工程條件,運用相似材料模擬實驗方法,對上覆巖層隨工作麵推進時的破斷規律進行研究,結閤經驗公式和相似模擬結果綜閤判定瞭工作麵上覆巖層垮落帶高度範圍為0~7.1 m,斷裂帶高度範圍為7.1~30.1 m；採用FLAC3D數值模擬軟件模擬得齣覆巖裂隙髮育區角度範圍,為優化高位鑽孔佈置參數提供瞭可靠的依據。
근거기동매광6135공작면개채공정조건,운용상사재료모의실험방법,대상복암층수공작면추진시적파단규률진행연구,결합경험공식화상사모의결과종합판정료공작면상복암층과락대고도범위위0~7.1 m,단렬대고도범위위7.1~30.1 m；채용FLAC3D수치모의연건모의득출복암렬극발육구각도범위,위우화고위찬공포치삼수제공료가고적의거。
In this paper, study was made on the rupturing law of the overburden strata with the working face advance by using the similar material simulation method according to mining conditions of 6135 fully mechanized coal face in Qidong Coal Mine. It was concluded by the comprehensive judgment according to the empirical formula and similar simulation results that the height range of the caving zone of overburden strata was about 0~7. 1 m and that of the ruptured zone was about 7. 1~30. 1 m; with FLAC3D simulation software, the angle range of the fracture development zone of the overburden strata was obtained, which provided reliable data for the optimization of high-level borehole layout parameters.
