摘要
针对国内矿山排土场胶带排土机广泛使用的现状,为最大限度地发挥排土机的排岩能力,减少排土机轨道的移动次数,降低矿山生产成本,对胶带排土最大段高和胶带排土机距排土场坡顶线的安全距离进行研究分析。通过对基础资料研究及渗流稳定性分析、抗滑稳定性分析,并采用FLAC3D对某露天矿排土机的安全距离进行了模拟研究,通过工况分析确定了设备载荷作用下排土场台阶边坡的潜在垮落形式,建立了该露天矿排土机排弃台阶的安全距离模型,数值模拟结果表明,排弃台阶高度为75 m时,排土机的安全距离不小于10 m。最后结合经验,综合确定排土机排土的最大台阶高度和排土的安全距离,对铁矿胶带排土生产具有指导意义。
In view of the wide application of the belt dumping conveyor in the domestic mine,and in order to maximize dumping ability of the belt dumping conveyor,reduce the moving number of the orbit,and lower the cost of mine production,the largest bench height and the safety distance from the belt conveyor to the top line of the waste dump are analyzed. Based on the basic data,the seepage stability analysis,and the anti-sliding stability analysis,FLAC3 Dis adopted to simulate the safety distance among the belt dumping conveyors for an open pit. According to the field condition,the potential caving forms at the bench slope of the waste dump under the equipment load are determined,and the safety distance model for the bench of the belt dumping conveyor is set up. The numerical simulation results indicate that the bench height is 75 m,and the safety distance among the conveyors is greater than 10 m. Combined with the experience,the maximum bench height and the safety distance are comprehensively determined,which has a guiding significance for the dumping and production by belt dumping conveyor in an Iron Mine.
出处
《金属矿山》
CAS
北大核心
2015年第3期63-67,共5页
Metal Mine
关键词
排土场
胶带排土机
最大台阶高度
安全距离
拉格朗日有限差分
Waste dump
Belt earth-disposal machine
Largest bench height
Safety distance
Lagrange finite-difference method
