Backfill mining method with stope rooms being arranged in centering and staggered mode

Abstract

The invention provides a backfill mining method with stope rooms being arranged in a centering and staggered mode. The form that the stope rooms are arranged in the centering and staggered mode is adopted, every two adjacent stope rooms share one stope room cross drift, and a cutting channel is pulled on two adjacent lode stratifications to form an air returning channel. Through implementation of the backfill mining method, after the stope room cross drifts are arranged, the stope rooms are not affected by in-lode stope preparation of the stope rooms, a dirty air returning channel during stope room stoping is formed, air quality of a stope is improved, and the probability of occurrence of occupational disease (silicosis) is effectively reduced; by using the form that the stope rooms are arranged in the centering and staggered mode, the condition that parts of ores cannot be mined during stoping of an ore body can be prevented, and economic efficiency is improved; in addition, the over mining phenomenon is effectively avoided, and safety of mining construction is ensured; the cutting channel arranged on the adjacent stratifications in a pulling mode can not only serve as the air returning channel, but also can serve as a backfilling channel for filling after stoping, and normal carrying out of the filling process is ensured.

Description

technical field [0001] The invention belongs to the field of mine mining, relates to a mining method, in particular to a filling mining method in which mine houses are centered and staggered. Background technique [0002] The filling mining method refers to sending filling materials into the goaf with the advancement of the mining face in the mine room or ore block, so as to manage the ground pressure, control the collapse of the surrounding rock and the movement of the ground surface, and the formed filling body mining on or under its protection. This method has high ore recovery rate, low dilution rate, safer operation, can utilize industrial waste, and protect the surface. The filling mining method has been widely used abroad, such as Canada, Australia, India, Poland, France, Germany, Sweden, Italy, Finland, Ireland, Mexico, South Africa and other countries. In China, the application of filling mining method is also developing rapidly. In 1985, the proportion of non-fe...

AI Technical Summary

Problems solved by technology

However, in the currently used filling mining method, in the mining process of the mining house, the ore body of the mining house is affected by factors such as the geological structure, the stability of the ore body, and the position of the stone gate. Phenomena such as accurate penetration in the vein will eventually lead to no pollution air return channel during mining and no filling channel after mining, which will bring great safety hazards to the production process

In addition, the ore recovery rate is also greatly affected when the ore body is mined slowly, often causing huge economic losses

[0003] Chinese patent (publication number: CN101737052B) discloses a segmented filling mining method, which utilizes the natural repose angle characteristics of caving ore and dry filling materials, according to the height that the current medium and deep hole rock drilling equipment can adapt to and the allowable exposure area of ​​the ore body , space and time, mining from bottom to top section by section in an empty field state and filling with dry filling materials in time, but it does not allow accurate penetration of vein mining between multiple mine houses

Chinese patent (publication number: CN103643992B) discloses a mining filling method, which uses filling slurry containing cement for filling, which improves the resource utilization rate of ore mining, but there is no return air passage between any two mining houses , There is no connection between multiple mines, which cannot guarantee the personal safety of mining workers and prevent the occurrence of occupational diseases such as silicosis

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