Gem-jade mining method

Abstract

The invention discloses a gem-jade mining method. Materials comprise two parts, namely, various models of rock core drilling machines and matched rock core drill bits with various diameters as well as detonating cords. The method comprises steps as follows: (1), a roadway is formed on the side surface of a gem-jade mine body by a large-diameter rock core drill, the roadway can be formed by a single row or multiple rows of holes according to the size of a rock core drill bit, the large-diameter rock core drill performs transverse tunneling from the roadway to the mine body, the roadway penetrates through the mine body, and four free surfaces are formed; directions and distances of the roadway and the transverse tunneling can be determined by the actual shape of the mine body, and rock core ores obtained through mining can be continuously utilized; (2), a small-diameter rock core drill is adopted to perform dense drilling at the bottom of the mine body, and rock core ores can be still continuously utilized; (3), the detonating cords are placed in holes in the bottom of the mine body, the mine body is lifted by the aid of smaller energy produced through explosion of the detonating cords and is enabled to be separated from surrounding rocks, and accordingly, the gem-jade ores are taken out. The gem-jade mining method is simple to operate and good in safety, the utilization rate of the ores is very high, and the economic benefits are good.

Description

technical field [0001] The invention belongs to the technical field of jade mining, and in particular relates to a method for mining precious jade. Background technique [0002] my country has rich and precious precious jade resources, and the development and utilization of precious jade has a long history. The distribution of gems and jade is relatively common, and the geological conditions are relatively complex. The difference between gemstone mines and ordinary minerals is that the former is often in a ring-shaped structure, and the ore bodies are thin and scattered. A mining site only contains a small amount of gemstones and is of high value; the latter is in a large block structure and distributed. Concentrated, a single mining site is rich in mineral content and can be mined for a long time. Therefore, it is impossible to mine gems and jade to establish a mining system for large-scale mining like common mineral mining such as coal mines. [0003] The currently wide...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the drilling efficiency is low, and it is easy to break the jade buried deep in the ground, resulting in a waste of resources.

The use of expansion agents is likely to cause permanent pollution to the environment. In addition, workers who use fans to drill holes are very prone to pneumoconiosis, which brings a lifetime of pain to workers.

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