DETERMINE THE POTENTIAL DRILL UTILIZATION IMPROVEMENTS AND ROCK FRAGMENTATION REQUIREMENTS USING DIRECTIONAL DRILLING IN A COAL MINING OVERBURDEN HIGHWALL APPLICATION

摘要

This project analyzed the efficiency of incorporating the use of directional drilling technology into coal overburden blasting. Directional drilling is currently in use in the petroleum industry and it is believed that it will be a valuable asset in the mining industry. This project has shown that directional drilling can be a viable technology for use in the coal overburden removal process resulting in increased drill utilization and potential for cost savings. Future work regarding blasting and geotechnical evaluation should be performed to solidify the concept.