Towards the development of integrated monitoring system for retreat mining operations

Towards the development of integrated monitoring

system for retreat mining operations

HAMID Maleki

【期刊名称】《煤炭学报：英文版》 【年(卷),期】2008(014)003

【摘要】Through cooperative research between the government, the private sector,mining companies and equipment manufacturers, considerable progress had been madeduring the last decade in studying the mechanics of strata failure and acquiring the know-ledge needed to develop an integrated monitoring system for assessing local roof stability.Because of higher geotechnical risks in retreat mining operations, it was both important todevelop panel layout designs that control convergence and stress and to monitor groundresponse during operations to verify designs and provide warning of impending stabilityproblems. For detecting both localized roof stability problems and global overburden col-lapse mechanisms, the proposes an integrated panel-wide monitoring system which com-bines the capabilities of load rate monitoring of mobile roof supports (MRSs) with deforma-tion measurements using an extensive array of sensors located near the mining face andthroughout the panel. Two monitoring methods for the detection of localized roof stabilityproblems have been evaluated on the basis of mine measurements and numerical model-ing