When the stage mine of the horizontal deep hole falling mine of Fig. 1 is used, the stage transportation roadway is generally arranged outside the vein to constitute an annular transportation system. An electric roadway and a dedicated return airway are arranged at the upper 4~6m of the transportation level. The layout of the rock drilling patio should not only reduce the mining workload, but also make the deep hole layout reasonable. Generally, it is better placed in the corner of the mining room than in the center of the mining room, which can better control the boundary of the mining house and prevent the residual gun root. , to reduce the size of the mine. The arrangement distance of the rock drilling patio shall not exceed 10 to 12 m when using the medium-deep hole, and shall not exceed 20 m when the deep hole is used. Cutting work mainly involves excavating the bottom space and expanding the leak. The shallow hole bottoming and leaking methods are similar to those of the shallow hole retention method. The deep hole bottoming forms a flat bottom structure, and the cutting groove can be firstly obtained by shallow hole retention method on both sides or one side of the mining room, and then the fan-shaped deep hole is drilled in the rock drilling roadway, and the bottom space is formed after the blasting. As shown in Figure 2, other deep hole bottoming construction methods can also be selected according to the bottom structure. 
Figure 1 Horizontal deep hole stage mining method
1-drilling chamber; 2-stage tunneling lane; 3-stage tunnel along the vein;
4-top column; 5-level deep hole; 6-column; 7-electric roadway; 8-stone bench
Figure 2 Deep hole bottoming method
1--distribution well; 2-electric roadway; 3-personal patio; 4-cutting trough;
5-cut trough ventilation patio; 6-cut trough smoothing patio; 7-deep hole rock drilling roadway; 8-level deep hole
When the vertical deep hole section rock drilling or stage rock drilling stage mining method is adopted, the mining roadway layout is shown in Fig. 3. The cutting work includes digging the cutting groove to form the bottoming space and the leakage.
Figure 3 Vertical deep hole stage mining method
1-passing roadway; 2-return roadway; 3-electric roadway; 4-rocking roadway; 5-pull roadway
When adopting the large-diameter vertical deep-hole stage mining method, the mining project only needs to dig the rock-filling roadway or the diverticulum in the upper part of the ore block, and dig the ore roadway in the lower part of the ore block; the cutting project needs to pull the bottom and the bottom of the ore block. At one end or in the middle of the mine, a full-cut cutting groove of the mine is formed. As shown in Figure 4.
Figure 4 Large diameter vertical deep hole stage mining method
1-Transportation lane; 2, 3-ditch bottoming roadway; 4-minening roadway; 5-cut patio;
6-cutting trough; 7-rock drilling roadway; 8--column; 9-mining run-through; 10-vertical strike inter-column
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