端部放矿下矿岩结拱的相似模拟实验研究  

Similar Simulation Experimental Study on Arching of Ore and Rock under Side Drawing

作　　者：王亮 温彦良 杜森 洪芷彤 WANG Liang;WEN Yanliang;DU Seng;HONG Zhitong(School of Mining Engineering,University of Science and Technology Liaoning,Anshan,Liaoning Province,114051 China)

机构地区：[1]辽宁科技大学矿业工程学院,辽宁鞍山114051

出　　处：《科技创新导报》2021年第12期82-84,共3页Science and Technology Innovation Herald

基　　金：辽宁科技大学大学生创新创业训练计划(项目编号:X202010146829)。

摘　　要：针对地下铁矿山端部放矿时经常出现的内部结拱问题,以矿山通用参数为基础,以侧压力监测的实验模拟手段探讨了矿岩堆积的结拱形成条件和结拱位置确定问题。实验结果显示,矿岩堆积高度超过10m后,放矿中就存在结拱的可能,放矿过程中发生结拱的位置距离放矿口约11m。研究结果在指导矿山改进放矿工艺方面具有借鉴意义。Aiming at the problem of internal arching which often occurs in side drawing of underground iron mine,based on the general parameters of the mine,by means of experimental simulation of ore and rock lateral pressure monitoring,when ore and rock stacked the formation conditions of arching and the determination of the location of arching are discussed.The experimental results show that when the stacking height of ore and rock is more than 10m,there is the possibility of arching in the drawing process.In the process of ore drawing,the location of arching is about 11m away from the ore drawing opening.The research results can be used for reference in guiding mine to improve drawing technology.

关 键 词：端部放矿 散体侧压力 损失 贫化 

分 类 号：TD853[矿业工程—金属矿开采]