The Sound Subsoil Management in Surface Coal Mining in Terms of the Kansk-Achinsk Coal Basin

摘要

Considering characteristics of geological and mining conditions at the Kansk-Achinsk brown coal basin,the authors prove the necessity for non-standard geotechnology application. A new pre-drainage-free geotechnology application has been described for watered flat coal strata,which ensures complete utilization of mineral reserves and mined-out areas as well as improves environmental safety. It is recommended to selectively extract hard dirt inclusions,if present,by hydraulic mining scheme. The article discusses feasible after-mining utilization of the disturbed lands.