采场坍塌空区地球物理探测及矿山恢复生产设计与安全评价

Detecting empty in the collapsed stope using geophysical on technology and design for production resume and safety evaluation of the mine

采用空场法开采的某金矿Au3号矿体于2006年12月4日发生了冒落垮塌事故,迫使矿山停产.为了尽快恢复矿山生产,确保今后矿山生产安全,有必要进行采场坍塌原因分析,了解采场塌埋填实情况,并根据实际塌落情况,进行安全评价和恢复生产的初步设计.针对这一要求,本文首先简要介绍了Au3号矿体的地质、采矿条件,并采用了地球物理勘探方法,进行了塌落采场的空区探测,揭示了采场的空区填埋情况,并进行采场稳定性评价;在此基础上,提出了恢复矿山生产的采矿设计.目前,该矿山正在基于本文的研究成果和提出的初步设计方案进行恢复性生产.

The Au3 stope using openstope mining method collapsed at 4 December. 2006 and then mining production had stopped. In order to recume production as early as possible, It is necessary to detect the empty in the collapsed stope. This paperpresents the work that analyzes the cause of caving and finds out the actuality of fill-up using geophysical detecting technology. Then design to resume production is given based on the detecting results. Finally, production safety is evaluated. At present, the mine is in trial production by adopting the design and results in this paper.