摘要
井巷掘进爆破工程中，工作面按设计要求，布置各种斜形炮孔，利用量角器和垂直尺控制钎杆与工作面夹角，使炮孔钻孔精度与设计炮孔角度基本上符合，在生产中取得了良好的爆破效果．
In the blasting of roadway drivage, the work-face Should be designed to meet the requirements and various inclined holes should be properly arranged. The angle included between the shaft her and the work-face can be controlled by means of a angle protractor and a ruler. The drilling precision should be basically conformed with the angle of the hole designed and good blasting effect can thus be obtained in the production process.
出处
《爆破器材》
CAS
北大核心
1994年第4期20-23,共4页
Explosive Materials
关键词
巷道掘进
爆破
钻孔
方向角
炮孔
roadway drivage
blasting
hole stripping
direction angle
