CAJ | 학술논문

__摘_谢桥煤矿东二C组-450～-610m胶带上山，长701.639m，倾角12°，掘进断面积20.1m2。为提高该大断面上山掘进效率，结合现场工程实际，对炮眼深度、炮眼直径、药卷直径和炮眼布置等中深孔爆破参数，掏槽形式和掏槽参数，光面爆破参数和光面爆破装药结构，底眼爆破参数和底板控制，合理的起爆方式等进行了研究和现场试验，取得了良好的效果。炮眼利用率由试验前的81.36％提高到了90％，爆破材料和炮眼消耗量均有所降低；巷道周边光面爆破效果良好，超欠挖少，成形质量较高；破碎岩石块度均匀，爆堆较为集中，有效地提高了装岩机装岩工时利用率和装岩生产率；钻眼质量高，巷道底板控制好，消除了落底现象。
__적_사교매광동이C조-450～-610m효대상산，장701.639m，경각12°，굴진단면적20.1m2。위제고해대단면상산굴진효솔，결합현장공정실제，대포안심도、포안직경、약권직경화포안포치등중심공폭파삼수，도조형식화도조삼수，광면폭파삼수화광면폭파장약결구，저안폭파삼수화저판공제，합리적기폭방식등진행료연구화현장시험，취득료량호적효과。포안이용솔유시험전적81.36％제고도료90％，폭파재료화포안소모량균유소강저；항도주변광면폭파효과량호，초흠알소，성형질량교고；파쇄암석괴도균균，폭퇴교위집중，유효지제고료장암궤장암공시이용솔화장암생산솔；찬안질량고，항도저판공제호，소제료락저현상。
A mine -450~ -610m belt conveyor rise in East No.2 C group of Xieqiao Mine had a length of 701.639m ,inclination of 12° and heading cross section area of 20.1m2.In order to improve a heading efficiency of the large cross section rise and in combination with a site engineering actuality ,a study and site experiment was conducted on a blasting borehole depth ,blasting borehole diameter ,cartridge diameter ,blasting borehole pattern and other medium depth borehole blasting parameter ,cutting mode and cutting parameters ,smooth blasting parameters and smooth blasting charge structure ,floor borehole blasting parameters and floor control ,rational detonating method and others and an excellent effect was obtained. An utilization rate of the boreholes was improved from a previous 81.36% to 90%and the consumption of the blasting material and blasting boreholes was reduced somewhat. The pe-riphery smooth blasting effect of the mine roadway was excellent ,an overbreak-underbreak was less and a profiling quality was high. A lump size of the broken rock was even ,a muckpile was quite con-centrated and thus a rock loading time utilization rate and rock loading efficiency of the rock loader were effectively improved. The quality of the borehole drilling was high ,the floor control of the mine roadway was good and a floor falling phenomenon was eliminated.