中国煤炭
中國煤炭
중국매탄
CHINA COAL
2015年
8期
77-80
,共4页
爆破掘进%大直径中空眼%直眼掏槽%自由面%CMJ17 HT 全液压钻车
爆破掘進%大直徑中空眼%直眼掏槽%自由麵%CMJ17 HT 全液壓鑽車
폭파굴진%대직경중공안%직안도조%자유면%CMJ17 HT 전액압찬차
blasting excavation%large diameter hollow bore%parallel cut%free surface%the CMJ17 HT full hydraulic drill carriage
为加大八矿运输上山掘进工作面爆破进尺，根据施工现场的实际地质情况，决定采用 CMJ17 HT 全液压钻车代替 YT－28型风钻打眼。重新设计了爆破参数，改用含大直径中空孔的直眼掏槽方式进行爆破掘进。经过近半个月的现场试验，爆破进尺有明显提高，说明增加掏槽眼自由面的面积，有利于提高爆破进尺。
為加大八礦運輸上山掘進工作麵爆破進呎，根據施工現場的實際地質情況，決定採用 CMJ17 HT 全液壓鑽車代替 YT－28型風鑽打眼。重新設計瞭爆破參數，改用含大直徑中空孔的直眼掏槽方式進行爆破掘進。經過近半箇月的現場試驗，爆破進呎有明顯提高，說明增加掏槽眼自由麵的麵積，有利于提高爆破進呎。
위가대팔광운수상산굴진공작면폭파진척，근거시공현장적실제지질정황，결정채용 CMJ17 HT 전액압찬차대체 YT－28형풍찬타안。중신설계료폭파삼수，개용함대직경중공공적직안도조방식진행폭파굴진。경과근반개월적현장시험，폭파진척유명현제고，설명증가도조안자유면적면적，유리우제고폭파진척。
In order to increase the blasting footage in driving face of transportation uphill in No?? 8 mine,the CMJ17 HT full hydraulic drill carriage was chosen to replace the YT-28 type pneumatic drill according to the actual geological conditions in the construction site?? The blasting parameters are redesigned,and parallel cut with large diameter hollow bore was applied during blasting excavation?? After conducting field trails for nearly half a month,the blasting footage had been significantly increased,which showed that enlarging the free surface area of cutting hole could help to increase the blasting footage.
