Does Shanxi still allow mining
Datong has the most coal mines.
is not a big mine. There are more than 30 million tons of coal mines in Pingshuo and Luliang< The profit mainly depends on the cost. Generally speaking, the comprehensive cost of coal mining in private coal mines is relatively low. The profit is relatively high. The cost per ton of coal is about 200 yuan. If the coal type or quality is good, the raw coal can also be sold at a high price. The quality of clean coal after washing is better. The price is also higher
simply calculate, if raw coal can buy 400 yuan per ton, the profit will be 200 yuan per ton. 500000 tons, just one billion
if you wash jiadandan zheganfei and surpass Jianggong, the price of clean coal will be higher and the profit will be higher
private
more than 5 million tons is very powerful
The problem of taking off does not have much to do with the discovery of mines. The key lies in how the government plans, how people use, whether the existing resources can be used in the right place, and whether good steel can be used in the blade. This is the key. It does not mean that a place will take off with resources< China has a land area of 9.6 million square kilometers. Can we say that there are no resources in other places? Obviously not, there are resources in other places, but from the current social and urban distribution, we will find that the leading cities are still those cities. There are too many cities that are better than these cities in terms of natural resources, but there is no way to compare these cities. The main reason lies in the correct application and leadership of people{ RRRRR}
from then on, we can see that owning resources is definitely a good thing, but if you want to get rich through resources, you need certain opportunities and correct application
if you want to dig, it's better to find a mine to pick up. However, if you find all the technical ones, you can pick them up~
brothers had better not do it. It's dangerous
"mined out" is called "mined out area" in coal mining engineering. According to the national standard, "coal pillar" should be reserved. If there is a village on the ground, it should also be included in the reserved coal pillar. I've seen a lot of coal mining designs. They're all designed in this way. But the real coal mining, if it is a large coal mine, will be in accordance with the design to mining, small coal mine is not necessarily
there are two ways to deal with the "goaf", one is backfilling, that is, filling some coal gangue and other things. The other is the natural roof fall method, which is to fill nothing. After the support equipment in the goaf is removed, the roof fall slowly, that is, falling off layer by layer. In fact, backfilling is more dangerous. I once practiced in a coal mine in Handan. I heard from the coal miners there that the natural roof fall method is generally adopted now. Because the head to fall rocks, and gas, if there is a sudden accident that is dangerous, so backfill is a thankless thing, it is estimated that few coal mines are willing to do
if there is an earthquake in Shanxi, the bigger cities should be OK. For example, Taiyuan, underground is full of coal, but the state does not allow mining, so if there is a big earthquake, it is the same as other places. But if Taiyuan wants to develop, it will certainly cover these mined out areas in the future, which will be more dangerous
finally, if Shanxi does not dig coal, what will it develop? The state will not let us be the energy base. I hope there is no coal in Shanxi, so we must develop the tourism instry. The saying "looking at Shanxi on the ground" is not in vain. It should not be a problem for Shanxi to develop the tourism instry.