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| Research and practice of mining area system optimization under complex geological conditions |
| Yu Siyang |
| Dashucun Mine, Hebei Jizhong Hanfeng Mining Co., Ltd., Handan 056306, China |
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Abstract Based on the comprehensive analysis of the production status of Dashucun Mine, as well as the existing underground production system and the actual geological conditions of the fifth mining area, the intrusion range of deep natural coke in the mining area was detected. Compared with the relationship between the ground village and the underground mining area roadway and the mining face, the influence degree of mining on the ground village buildings was considered. On the basis of making full use of the existing production system of the fourth mining area, the production system of the fifth mining area was not independent. At the same time, the mining technology scheme under the village coal pillar of the fifth mining area was studied. Finally, the purpose of reducing the excavation preparation project, reducing the damage degree of the ground building structure and maximizing the liberation of the village overlying coal resources was achieved. The preparation period was reduced from 37 months to 15 months. This technology can provide reference for other similar mines.
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