| 摘要 |
The utility model relates to mining. A method for preparation of watered wells for charging with water-unstable explosive substances through lowering immersion unit with hydro-insulating sleeve to bottom of watered well. To decrease labor consumption as immersion unit one uses vessel with half-block inside, this is filled with fine rock or sand, and before lowering to bottom of watered well one rigidly fixes end of hydro-insulating hose on it. After that one passes cable through it, its one end is fixed on the barrel placed over the well, and to the other end one connects appliance for cavity formation. After lowering to bottom vessel is fixed with rock, after that one rotates the barrel and lowers appliance for cavity formation to the well.
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