CAJ | 학술논문

针对急倾斜中厚煤层由于倾角增大导致采用传统爆破方法施工开切眼存在难度大、安全威胁大、防突困难、片帮飞矸严重、人员站位定位困难等问题，创造性提出2种施工方法。采用钻机从下至上钻孔再逐级扩孔施工先导钻孔准确定位形成下煤通道，再从上往下进行扩刷，初始伪俯斜布置，之后切换为真倾斜，为急倾斜中厚煤层开切眼施工提供指导和借鉴意义。
침대급경사중후매층유우경각증대도치채용전통폭파방법시공개절안존재난도대、안전위협대、방돌곤난、편방비안엄중、인원참위정위곤난등문제，창조성제출2충시공방법。채용찬궤종하지상찬공재축급확공시공선도찬공준학정위형성하매통도，재종상왕하진행확쇄，초시위부사포치，지후절환위진경사，위급경사중후매층개절안시공제공지도화차감의의。
For steeply inclined medium thick seam dip angle increases due to the traditional blasting method of construction led to the opening cut in the presence of difficulties, threats to security, anti-sudden difficulties, severe spalling refuse to fly, staff stations positioned difficult issues creatively propose two construction methods. Drilling rig from the bottom and then progressively reaming the pilot borehole construction accurate positioning channel formed under the coal, then from top down enlargement,initial steeply inclined arrangement, after the handover is true inclination for steeply inclined in cut in coal seam construction to provide guidance and reference.