Goaf filling method in mining engineering
A technology for mining engineering and gobs, which is applied to filling materials, mining equipment, earth cube drilling and mining, etc. It can solve problems such as waste of mineral resources, weak roofing links, failure of waste rock filling mining methods, etc., and reduce labor costs Effect
Inactive Publication Date: 2014-11-19
韦立坚
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Problems solved by technology
Because this link is very weak, it often leads to the failure of waste rock filling mining method
Originally, the waste rock filling mining method is a very low-cost filling mining method. It not only realizes goaf filling at low cost, thereby protecting the goaf, but also makes full use of waste rock resources without forming a large amount of waste rock Discarding in nature causes some kind of environmental damage or ecological imbalance. However, due to the weakness of the top link, the waste rock filling mining method is often abandoned
Due to the abandonment of the waste rock filling mining method, some mineral deposits that are only suitable for low-cost filling method mining cannot be exploited reasonably and effectively, resulting in a waste of mineral resources, and a large amount of waste rock is piled up in the nature on the surface. , causing environmental and even ecological damage
Method used
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[0012] Attached below figure 1 , attached figure 2 Examples will be specifically described.
[0013] pass figure 1 , figure 2 It can be seen that the goaf 2 is a cavity formed after the underground ore is extracted, the top of the cavity is the goaf roof 1 (corresponding to the ceiling of the house), and the bottom of the cavity is the goaf floor 5 , the side of the cavity is the gob side 6. The gob floor usually has a slope. Gobs vary in size, some gobs can reach hundreds of meters in length along the slope direction, some can reach only two meters in length, some can reach tens of meters in width direction, and some can only reach two or three meters in length along the width direction. Three meters, the size depends on the specific situation. Because in specific affairs, the scale, size and shape of the gobs are different, some of which are very different, and the situation is too complicated, so the application has to simplify the situation so that the technical so...
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The invention discloses a goaf filling method in mining engineering. The method includes the steps that a goaf is filled with barren rock to form a barren rock filling body; gaps between a roof of the goaf and the barren rock filling body are filled with rigid foamed plastics. Through the method, filling of the goaf can be achieved, roof contact can be achieved conveniently, therefore, the construction speed in roof contact operation in a barren rock filling mining method can be greatly increased, the labor intensity of roof contact operation can be reduced, and the labor cost of roof contact operation can be reduced.
Description
technical field [0001] The invention relates to a mining technology, in particular to a goaf filling method. Background technique [0002] In the mining method of filling the gob with waste rock, when the inclination angle of the ore body is not large enough, it is difficult for the waste rock filled in the goaf to be piled up close to the roof. In this case, there will be a gap between the waste rock pile and the roof. Of course, if the inclination angle of the ore body is large enough, greater than the natural repose angle of the waste rock, that is, greater than the accumulation slope naturally formed during the accumulation of the waste rock, there will be no gap between the waste rock pile and the roof. When the inclination angle of the ore body is not large enough and there is a gap between the waste rock filled in the goaf and the roof, if the gap is not filled with some kind of material, the waste rock filling will not be able to support the goaf roof role. In the...
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Inventor 韦立坚
Owner 韦立坚