程潮铁矿西区开采塌陷对选矿厂的影响及保护措施

Effect of mining subsidence in western region on concentrator of Chengchao iron mine and protection measures

程潮铁矿东区现生产的选矿厂位于西区的西端，由于西区矿体埋藏深，开采引起的岩移塌陷关系到现选厂的利用。文中介绍随机介质理论用于预计地下开采不同深度引起地表移动变形范围，依不同的范围研究保安矿柱的圈定，从中选择有利于选矿厂的保护方案。

The eastern concentrating plant of Chengchao iron mine in operation is situated to the western end of the mine·Owing to deeplying of the orebodies,the rock movement and subsidence caused by mining is influncing the further utilization of the present concentrator.This paper briefly introduces the random medium theory for estimating the range of surface movement and deformation due to underground mining at defferent mining depth,determing the contour of protecting pillar according to the subsidence extent,and selecting the suitable protective measures for the concentrating plant.