CAJ | 학술논문

为了解决某矿深部不规则孤岛工作面因冲击地压影响开采的问题，结合某矿T1391不规则孤岛工作面的实际情况，分析了孤岛工作面回采过程开采顺序引起的覆岩空间结构变化、应力分布、能量积聚，确定对 T1391采用大小面整体间歇式开采顺序，以便有序释放能量，实现冲击能量的可控性；通过数值模拟确定了小面超前大面的开采顺序，降低了应力集中和能量积聚，减小了两面之间煤柱的冲击地压。对具有冲击危险的超前煤柱采取动态爆破技术进行卸压处理，减小了煤柱开采期间的冲击危险，使得工作面安全推采。
위료해결모광심부불규칙고도공작면인충격지압영향개채적문제，결합모광T1391불규칙고도공작면적실제정황，분석료고도공작면회채과정개채순서인기적복암공간결구변화、응력분포、능량적취，학정대 T1391채용대소면정체간헐식개채순서，이편유서석방능량，실현충격능량적가공성；통과수치모의학정료소면초전대면적개채순서，강저료응력집중화능량적취，감소료량면지간매주적충격지압。대구유충격위험적초전매주채취동태폭파기술진행사압처리，감소료매주개채기간적충격위험，사득공작면안전추채。
To solve the problem that the mining process of deep and irregular island working face in a certain mine was influenced by rock burst,the space structure changes,stress distribu-tion and energy accumulation of overlying strata caused by mining sequence in mining process of island working face were analyzed according to the actual situations of the T1 3 9 1 face,it con-firmed that the intermission mining method for both the big face and the small face was adopted in the T1 3 9 1 face,which could release energy orderly and realize the controllability of impact en-ergy. Through numerical simulation,it indicated that the small face mined staying ahead of the big face could reduce the stress concentration and energy accumulation,and decrease the rock burst of coal pillar between two faces. The dynamic blasting technique was adopted for advance coal pillar with burst risk to release the pressure,so that it could reduce the burst risk during coal pillar mining and ensure the safe mining.