Granite stone mining problem
Granite stone is a kind of special stone, which is widely used, so the demand is also relatively large. But the mining of granite stone is not so simple, there are still various problems.
Choose mining method
If the granite is in an open-air mountain and the thickness of the ore body is exposed, it should be exploited by open-pit mining. If the stone is exposed to flat terrain, it is best to use open pit mining; if the exposed area is small, and the stone Most of it is covered, covered and surrounded, and it is necessary to use holes or wells for mining.
For granite stone mining, because of the hardness of this stone, the sawing method is generally chosen. For the mineral deposits with medium acidity and acid immersion into the rock to form granite, most of them choose mechanized to use higher mining methods. All are rock foundations. It is best to use the original joints of the rock mass to carry out the mining. Generally, the inclination angle of the rock stratum is relatively flat, and a free surface is formed. The direction of the working surface should be parallel with the direction of the longitudinal joint, and then proceed along the joint of the layer. And use the flame to cut the layer along the transverse joint, and then use the splitting or control of the blast to separate, and the hole distance and the charge of the blasting are experimentally used to determine the reasonable parameters; then the hole is drilled along the transverse joint direction, using Controlling blasting or smashing cracks becomes a block.
Mining problems
For granite stone mining, it is important to choose a scientific mining method based on the actual situation, and it is also necessary to analyze the problems in the current mining situation. In general, there are some problems as follows:
1) The blind mining has not been demonstrated. With the urgent need for granite stone, the stone mining market is gradually expanding. Therefore, many businesses have a mind to seek benefits, and do not make arguments at all, especially for places where there is no geological data, direct blind mining, chaotic mining, and deliberate destruction of ecological resources; and for mining, it is only a long-term, lacking a long-term Strategic planning; 2) Lack of effective strategies to protect the environment. Driven by various economic interests, all the merchants who mine granite stone are mining their own. Regardless of the natural environment, they are not used in stacking all kinds of waste stones. The stacking is mostly disorderly, which seriously destroys the natural ecology and environment. ; 3) Insufficient use of blocks. At the mining site of granite stone, you can see all kinds of blocks everywhere. In fact, the blocks can be reused, and should not be used as waste rock on the ground in order to ensure the full use of mine resources and reduce waste of resources. For example, abandoned blocks can be used as concrete aggregate after being crushed again, and can also be widely used for landfilling, reclamation, and the like.
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