Pictures of mining

6. This is the standard diagram of the comprehensive mining method for the layout of transportation drift in the vein.
the small piece you refer to in the thick line is the funnel. If you look over the mining design manual, the funnel also belongs to the bottom pillar. The irregular point pillar in the center of the ore block is generally estimated by the rock drillers because they think the ore is poor there
this drawing is a plan. For the standard drawing of mining method of gently inclined orebody, generally only plan and section drawings are made.
except for gently inclined orebody, the rest are generally in front view, top view and bottom view Side view of this sequence
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in addition, the map you sent is accurate within the vein, OK, close your eyes, according to the design of the middle section of 40m or 50m, drive a roadway along the vein at a certain height, which is the 1-transport roadway on the map, Then dig a way up the mountain at a certain position. For example, it's on the leftmost side of your map. Then, parallel to the transportation roadway, the bottom pulling roadway is g 6-8m up the mountain. Well, two working faces are formed. Mining continues at the end of the mountain, and the bottom pulling roadway breaks through. Right, mining is ahead of mining! Then, ah, sequential mining, it's what you see in the picture
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however, this picture is used in the past and used in artificial mining. Nobody uses it anymore. Why can't the proction capacity go up
OK, let's look at the picture,
1. The electric harrow nest is on one side of the transportation roadway, the harrow bucket is on the other side of the transportation roadway, and the steel rope crosses the transportation roadway, which will definitely affect other operations in the roadway
2. The comprehensive method is applicable to the ore body with dip angle less than 30. If it is arranged as shown in the figure, the height difference between the floor height of the transportation roadway and the funnel mouth is relatively small, and it can barely install a wooden funnel to load ore into the car. However, looking at the things in the figure, I think that the transportation roadway is running on a two wheeled wooden frame car, which manually takes the stpan to load ore
3. The efficiency is extremely low when the funnel spacing is 8m and the ore is loaded at multiple points
4. In general, the height of the middle section of a metal mine is more than 40m. If it is 40m, then two rooms on the map can be arranged on one middle section. I don't believe you can try it in CAD^_^< br />_________________________________________________________________
in addition, this is the picture in the old book. If it's your textbook, I despise your teachers. I'm irresponsible and teach students what I learned half a century ago<

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for the sake of my hard work in typing so many words, let's have a look
in addition, if you have problems in this area, you can post to me in the mining engineering post bar. I read the post every day
good luck!!!

8. If you go to the map without people, there will be more minerals and more loving stones

9. There are pictures on the Internet. That's how I find them.