Baigali Lkhagvajav2024-11-142024-11-142022-05-26https://gmitlibrary.net/handle/123456789/130This thesis focused on experimental analysis of the rehabilitated area in the abandoned small-scale coal mine in the Nalaikh mining area. The soil analysis is conducted at several spots in the rehabilitated shafts since the impacts of the rehabilitation by backfilling method could be more detectable in soil than in the water and air environment. Additionally, backfilling method of coal fly ash and mining reclamation were researched and mentioned, including a review of Mongolian examples of the backfilling method and the BASMIC project.enThesis