Shield Pressure Monitoring to Detect Longwall Ground Hazards.
Paper in Proc of the Midwest Mine Health & Safety Conference So Illinois Univ PP 147-156 :147-156
Continuously monitored shield-leg pressure changes have proven to be an indicator of certain longwall ground control hazards, including high-stress zones along the face and roof falls and floor heave in adjacent gateroads. Monitoring and analysis of shield load and gateroad stability data have been accomplished using the ground control management system (gcms) developed by the U.S. Bureau of Mines. The automated capabilities of the gcms have enabled researchers and mining personnel to remotely monitor geostructural data and evaluate ground stability during the high-speed extraction of four longwall panels in a Colorado coal mine. This paper emphasizes the application of shield load monitoring for detecting and managing developing ground control hazards along the face and in the gateroads.
Paper in Proc. of the Midwest Mine Health & Safety Conference; So. Illinois Univ., PP. 147-156