| 摘要 |
FIELD: mining art, applicable for charging of deep holes at blasting in mining art and in construction. ^ SUBSTANCE: the method consists in production of air gaps with the aid of deep-hole gates whose diameter exceeds the deep-hole diameter, lowering of them into the deep hole to a preset depth, installation of live primers in each deep hole, installation of the detonating cord. Air gaps are produced with the aid of an elastic deep-hole gate, which in the deformed state is placed in a transportation container and on a rod rigidly linked with the transportation container. They are lowered into the deep hole that is adjusted with the aid of the rod, where the elastic deep-hole gate is pushed out of the transportation container. The transportation container is taken out of the deep hole, and the live primer and a portion of the charge is placed on the elastic deep-hole gate. Then, the same elastic deep-hole gate in a deformed state is placed into the next transportation container, lowered into the deep hole to a preset depth and all operations are repeated in the same sequence up to the feasibility studied quantity of elastic gates in the deep hole. ^ EFFECT: reduced labor content of deep-hole charging by distributed charges, reduced specific cost of the gate of the ultimate cost of the installed charge, reduced cost of deep-hole charging by distributed charges, simplified process of charge distribution in a deep-hole. ^ 4 dwg, 1 ex |
