Mineral exploitation method based on non-pillar shallow hole room-and-pillar method and segmental shrinkage mining method

Abstract

The invention discloses a mineral exploitation method based on a non-pillar shallow hole room-and-pillar method and a segmental shrinkage mining method. The method is divided into first-stage exploitation and second-stage exploitation. Specifically, the first-stage exploitation comprises the steps that non-pillar shallow hole room-and-pillar method exploitation is carried out; ores in an exploiting area is stoped from top to bottom according to the stoping order, meanwhile, mining retreating is conducted from a cut free face of a mineral deposit, and in stoping of upper ore blocks, the stoping speed is maintained in an advanced position in whole stoping. The second-stage exploitation comprises the steps that in the exploitation of a layered area of the mineral deposit, mineral exploitation and production are finished through segmental shrinkage mining. According to the mineral exploitation method based on the non-pillar shallow hole room-and-pillar method and the segmental shrinkage mining method, the exploitation efficiency is high and resource wasting is not caused. The segmental shrinkage mining method and the non-pillar shallow hole room-and-pillar method are the two common methods in the mineral resource exploitation, the ore stoping rate can be increased, the mineral exploration benefit is guaranteed, and the further development of the mineral exploration is facilitated.

Description

technical field [0001] The invention relates to a mineral mining method, in particular to a mineral mining method based on a bottomless pillar shallow eye room pillar method and a segmented ore retention method, and belongs to the technical field of mineral mining. Background technique [0002] In the process of mineral mining, it is usually divided into the first-stage mining and the second-stage mining. In the second-stage mining of the mining area, the mining is mainly based on the shallow-pillar room-and-pillar method without pillars, while in the mining of the layered area of ​​the ore deposit , after the mining of a structural layer, for the newly confirmed and mined ore layer, when mining by pulling the bottom and pressing the top, the space for the top pressing operation is very small, and the mining and transportation of mineral resources by the back mining method cannot be used for the ore above the roof of the mining area. Recycling, this will reduce the recovery ...

AI Technical Summary

Problems solved by technology

[0002] In the process of mineral mining, it is usually divided into the first-stage mining and the second-stage mining. In the second-stage mining of the mining area, the mining is mainly based on the shallow-pillar room-and-pillar method without pillars, while in the mining of the layered area of ​​the ore deposit , after the mining of a structural layer, for the newly confirmed and mined ore layer, when mining by pulling the bottom and pressing the top, the space for the top pressing operation is very small, and the mining and transportation of mineral resources by the back mining method cannot be used for the ore above the roof of the mining area. Recycling, this will reduce the recovery rate of mineral mining, resulting in a large waste of resources, thereby affecting the benefits of mineral resource mining and production, and adopting segmented ore retention as a relatively common way in mineral resource mining and production, It has relatively wide applicability, especially in the mining and production of minerals with relatively complex mining conditions. It can not only improve the efficiency of mineral mining, but also help to improve the efficiency of mineral resource mining and production, and has a more prominent role advantage; but it is for a The efficiency of long-term mining operations is relatively low