A TREATISE ON COAL MINING
Sustainable Rehabilitation of Surface Coal Mining Areas: The Case of Greek Lignite Mines 1 Numerical Analysis of Longwall Gate-Entry Stability underWeak Geological Condition: ACase Study of an Indonesian Coal Mine 25 Comparative Analysis of the Mining Cribs Models Filled with Gangue 41 A Multi-Criteria Approach for the Evaluation of Low Risk Restoration Projects in Continuous Surface Lignite Mines 59 The Time Duration of the Effects of Total Extraction Mining Methods on Surface Movement 81 Study on Foamed Concrete Used as Gas Isolation Material in the Coal Mine Goaf 93 Water Preservation and Conservation above Coal Mines Using an Innovative Approach: A Case Study 107 Acoustic Emission Characteristics of Coal Samples under Different Stress Paths Corresponding to Different Mining Layouts 135 Experimental Study on the Characteristics of Activated Coal Gangue and Coal Gangue-Based Geopolymer 149