COAL GEOLOGY

By B. FAURE

Contents Failure Mechanism and Rib-Roof Synergistic Support Technology for Bottom-Driven Roadways in Deep Thick Coal Seams 1 Pore Permeability Cycling Characteristics of Coal-Bearing Strata in the Agong Syncline, Western Guizhou, South China: Implications for Superposed Gas Systems 27 Research and Predictive Evaluation of Main Control Factors for Gas Enrichment in No.13 Coal Mine in Henan Province 49 Dynamic Accounting of Coal Mine Resources and Reserves: A Case Study of Huainan Zhujidong Mine 60 Fracturing Tracer Monitoring and Machine Learning- Assisted Geology-Engineering Coupled Optimization for Deep Coalbed Methane HorizontalWells 74 Effects of Mineral Composition and TOC Content of Coal Gangue on CO2 Adsorption Capacity 98