| 摘要 |
FIELD: blasting operations. ^ SUBSTANCE: method of charge dispersal in well includes generation of air gaps by means of well gates, installation of primer in each part of charge on triggering pulse conductor. Air gaps are generated by means of well gates in the form of thin-walled leak tight plastic elements located sequentially above each other for the whole length of air gap. Sealing bulk of explosive is placed on the last element. It is enclosed into soft and elastic capsule with diameter larger than well diameter. The upper part of loose explosive is placed above. If fluid explosive is used, foamed polystyrene is filled between well walls and well gates. After that the upper part of explosive is formed by filling fluid explosive to a rated altitude. Well gates diameter is 0.9 -0.95 of well diameter, length - 2-5 diameters. ^ EFFECT: invention ensures quick and reliable creation of air gap. ^ 2 cl, 6 dwg |
