Abstract:
Geological disasters and ecological environmental problems, such as surface subsidence, vegetation degradation, and land occupation caused by underground mining, are increasingly severe. Without corresponding technical measures, these issues will not only result in significant economic losses for enterprises but also impact the sustainable development of mining areas and the stability of surrounding communities. Therefore, to mitigate this negative impact, this paper analyzes land damage in coal subsidence areas through field investigation, theoretical analysis, and indoor calculation using Pingmei No.10 Mine as an engineering background. The study proposes corresponding technical measures for geological environment protection and land reclamation in the mining area for different types of damage forms during various periods. The results show that large-scale surface subsidence (1 824.89 hm
2), gangue compression of the land, and ground cracks caused by subsidence are the primary damages to the ground from coal mining at Pingmei No.10 Mine. To address these issues effectively, this study suggests traditional land reclamation models along with new technologies such as “sectional management and one-time restoration full height implement”. All damaged lands will be reclaimed into agricultural lands including cultivated lands, garden lands forestlands grasslands rural roads while implementing soil reconstruction vegetation reconstruction supporting projects simultaneously with “advance reclamation mode” and “concurrent mining and reclamation mode” “sectional management and one time restoration full height implementation” technical measures achieving good results dynamic land reclamation technology system improvement in Pingmei coal mining area guiding role.