Characteristics and Mechanisms of Crack Propagation in Gas-Bearing Coal Under Adsorptive Versus Non-Adsorptive Gas Conditions

Key Points

• Crack propagation differs significantly under adsorptive versus non-adsorptive gas conditions, affecting coal integrity and extraction.
• Under adsorptive conditions, increased fracture behavior correlates with gas adsorption levels, altering stress responses.
• Experiments and modeling assess changes in crack behavior using specialized techniques in controlled settings.
• These findings may inform improved extraction strategies and resource management in gas-bearing coal fields.