华北科技学院学报
華北科技學院學報
화북과기학원학보
JOURNAL OF NORTH CHINA INSTITUTE OF SCIENCE AND TECHNOLOGY
2013年
2期
37-40
,共4页
大倾角%矿压显现%综放工作面%岩移规律
大傾角%礦壓顯現%綜放工作麵%巖移規律
대경각%광압현현%종방공작면%암이규률
large angles%mine pressure behave%fully mechanized caving face%regularity of rock shift
基于赵各庄矿3237综放工作面矿压观测结果，重点研究了深部大倾角综放工作面的矿压显现规律和上覆围岩运移规律。研究结果表明：工作面初次来压步距为16～18 m，增载系数为1.47～2.33；周期来压步距为11～13 m，增载系数为1.15～1.36，属于来压不明显工作面；支架前柱工作阻力普遍大于后柱，约为2倍的关系；顶煤和顶板的始动位置超前于煤壁，煤壁前方的顶煤与顶板均出现不同程度的水平和垂直位移量。
基于趙各莊礦3237綜放工作麵礦壓觀測結果，重點研究瞭深部大傾角綜放工作麵的礦壓顯現規律和上覆圍巖運移規律。研究結果錶明：工作麵初次來壓步距為16～18 m，增載繫數為1.47～2.33；週期來壓步距為11～13 m，增載繫數為1.15～1.36，屬于來壓不明顯工作麵；支架前柱工作阻力普遍大于後柱，約為2倍的關繫；頂煤和頂闆的始動位置超前于煤壁，煤壁前方的頂煤與頂闆均齣現不同程度的水平和垂直位移量。
기우조각장광3237종방공작면광압관측결과，중점연구료심부대경각종방공작면적광압현현규률화상복위암운이규률。연구결과표명：공작면초차래압보거위16～18 m，증재계수위1.47～2.33；주기래압보거위11～13 m，증재계수위1.15～1.36，속우래압불명현공작면；지가전주공작조력보편대우후주，약위2배적관계；정매화정판적시동위치초전우매벽，매벽전방적정매여정판균출현불동정도적수평화수직위이량。
Based on the observation results of mine pressure of fully mechanized caving face 3237 in Zhaogezhuang Mine, the mine pressure behave laws of deep tilting fully mechanized caving face and regularity of overlying rock shift were discussed .The results indicated that:①the workface weighting was not obvious because the work first weighting step distance was 16~18m with the increasing load modulus 1.47~2.33, and the periodic weighting length of workface was 11~13m with the increasing load modulus 1.15~1.36;②working resistance of anterior column support was about twice as much the posterior column generally ;③ the movement of roof coal and immediate roof and main roof is in front of the coal wall , and different degree movement in hori-zontal and vertical direction have happened in the roof coal and roof in front of the coal wall .
