Prospecting and short-hole shrinkage mining method of small inclined ore body

Abstract

The invention discloses a prospecting and short-hole shrinkage mining method of a small inclined ore body. The method comprises the following steps of: A, prospecting: tunneling a prospect tunnel at preset standard height in an ore body along the trend direction of the ore body, and tunneling a prospect transition strip at certain interval till the ore body is ruptured; B accurate mining cutting: arranging a following-vein transportation main tunnel at the preset standard height in the following-vein direction of the ore body by taking the prospect tunnel or the prospect transition strip formed in the step A as a transportation tunnel or an underbreaking tunnel, wherein the transportation tunnel or an underbreaking rear stope room are communicated with the following-vein transportation main tunnel; and C, stoping: exploiting the ore body inside the stope room by adopting a short-hole shrinkage mining method. The prospecting and short-hole shrinkage mining method disclosed by the invention can effectively reduce the prospection and exploitation engineering quantity of the small incline ore body and enhance the control degree by exploiting the ore body inside the stope room by taking the prospect tunnel and the prospect transition strip as basis and adopting the short-hole shrinkage mining method, thereby enhancing the ore recovery rate and reducing the ore loss rate and the ore dilution rate; and the prospecting and short-hole shrinkage mining method disclosed by the invention enhances the utilization ratio and prospection and exploitation safety of mineral resources and reduces the mining cost.

Description

technical field [0001] The invention belongs to the technical field of mineral excavation, and in particular relates to an inclined small ore body prospecting-shallow hole ore retention mining method which effectively reduces the amount of mineral exploration and mining, improves the utilization rate of mineral resources and the safety of exploration and mining, and has low mining cost. Background technique [0002] In recent years, the mining of relatively large ore bodies in my country is coming to an end. Due to the small scale of small ore bodies, the degree of control and mining conditions are relatively poor, and the investment in mining engineering is relatively large. How to rationally and fully utilize mineral resources has become an urgent problem to be solved by mines. [0003] At present, the mining of small ore bodies is affected by mining equipment and technology, and the open-field mining method of roadway mining is mostly used. The so-called roadway mining me...

AI Technical Summary

Problems solved by technology

[0005] Due to the generally thin ore body and large boundary changes of inclined small ore bodies, it is difficult to grasp the boundary distribution of ore bodies in the previous geological survey, and the recovery rate is low and the loss and dilution are large in direct mining

Although the combination of prospecting and mining can effectively improve the control of ore body, the separation of exploration and mining will lead to the defects of large exploration and mining engineering and high exploration and mining costs

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