A Comprehensive Monitoring and Evaluation of Disaster Risk Due to Linkage of Residual Coal Pillars and Rock Strata

In the mining industry, the extraction of coal often leaves behind residual coal pillars to support the overlying rock strata. However, the linkage between these residual coal pillars and the rock strata can pose significant disaster risks if not properly monitored and evaluated. Understanding the potential hazards and implementing effective monitoring and evaluation strategies is crucial to ensuring the safety of mining operations and surrounding communities.

The Importance of Monitoring and Evaluation

Disasters such as roof collapses, pillar failures, and rockbursts can occur when the linkage between residual coal pillars and rock strata is compromised. Monitoring and evaluating the stability of these structures is essential to identify potential risks and take proactive measures to prevent disasters. By continuously monitoring key indicators such as pillar deformation, rock stress, and ground movement, mining operators can detect early warning signs of instability and implement timely interventions.

Techniques for Monitoring and Evaluation

Various techniques can be employed to monitor and evaluate the linkage of residual coal pillars and rock strata. These include:

• Geotechnical Instrumentation: Installing instruments such as extensometers, inclinometers, and strain gauges to measure deformation and stress in the pillars and surrounding rock.
• Seismic Monitoring: Using seismic sensors to detect rock mass movements and potential failure zones.
• Remote Sensing: Utilizing satellite imagery and LiDAR technology to monitor ground subsidence and surface deformation.

Case Studies and Best Practices

Several mining companies have successfully implemented comprehensive monitoring and evaluation programs to mitigate disaster risks associated with residual coal pillars and rock strata linkage. By combining real-time data collection with advanced analytics, these companies have been able to predict potential hazards and implement targeted risk reduction measures.

Best Practices Include:

• Regular inspections and maintenance of monitoring equipment
• Integration of monitoring data with geological models for predictive analysis
• Training of personnel on emergency response procedures

Conclusion

Ensuring the safety of mining operations and surrounding communities requires a proactive approach to monitoring and evaluating disaster risks associated with residual coal pillars and rock strata linkage. By implementing comprehensive monitoring programs and following best practices, mining companies can minimize the likelihood of disasters and protect both their assets and the environment.