What regulations should be met in adopting the caving mining method?
Drop Forging is the process of heating metal and hammering it in to a special die (cast die) to produce a final product. Manufacturers use the drop forging process to produce hardware products which need to be strong and durable. Drop Forging Drop Forged,Drop Forged Steel,Hot Drop Forging,Closed Die Drop Forging Jinan Paiwo Engineering Machinery Co.,Ltd , https://www.paiwoforging.com
2. When using the caving method, in the steep slopes of the mountain, measures should be taken to prevent or avoid the damage of landslides, rolling stones and mudslides; for areas with thick ground cover and abundant rainfall, it should prevent a large amount of soil from being mixed into the ore and muddy water into the mining area. Measure
3. During the period of mining and use, part of the transportation lanes and panel mining projects shall be arranged 10m outside the rock movement range of the corresponding mining stage ;
4. The horizontal propulsion direction of ore mining shall be arranged strictly in the order of favorable control of ground pressure and shall be kept in the opposite direction to the main incoming air flow of the mine;
5. When mining extremely thick ore bodies and the output is large, elevator shafts for lifting personnel and equipment materials can be installed between the stages;
6. When using the caving method to return to the mining column, the intermediate column, the top column and the bottom column should be subjected to differential blasting once to collapse, and the ore should be placed under the covered rock; when the ore is stable, the column should be firstly taken and placed under the open field conditions. After the mine, the top column and the bottom column are taken again;
7. The ore recovery rate of the caving mining method shall not be less than 75% for medium and thick ore bodies ; the thin ore body shall not be less than 80% .