关键词: 地下矿, 规划区, 压覆资源, 回收方案, 露天开采

Abstract: Aiming at the placement problem at land surface subsidence of Nalinmiao Mine II，the residents relocation village planning area is considered to set up within the realm of mineral rights.In the feasibility study，two covered resources recycling schemes are presented，consisting of the underground mining-filling method and the blasting caving-surface mining-backfilling reclamation method.Various methods and measures are taken to study these two schemes，including combination of mining operations and mathematical analysis，combination of theoretical analysis and examples，and the establishment of economic models and others.By comparing the economic benefits and social benefits of the two schemes，the blasting caving-surface mining-backfilling reclamation method is adopted.Study shows that the scheme proposed can successfully recover the coal resources of 1.593 million tons in the planning area，and create a direct economic benefit of 150.904 million yuan.Through the land reclamation，the original barren landscape will be improved to be an ecological environment for habitat with a harmonious development of agriculture，forestry，animal husbandry and fishery，realizing a win-win situation of the economic and social benefits.

Key words: Underground mine, Planning area, Covered resources, Recycling scheme, Surface mining