摘要
云南省会泽铅锌矿8号矿体矿围岩为不稳固岩体,采用上向分层胶结充填采矿法,采场顶板的稳定性是保证矿山安全高效回采的关键。文中采用三维有限元模拟对采场顶板进行了稳定性分析,通过对矿体不同回采步骤顶板位移、应力分布进行分析,确定了矿体合理的回采顺序,有效地控制了顶板稳定问题,提高了回采效率。
Eight number orebody of Huize Lead-Zinc mine is unsteady,system of mining is upper to lamination consolidated fill,and stability of winning track s top tray is the key to mine safety and high efficiency drawning.Stability analysis was adopted to winning track s top tray by means of triaxiality finite element modeling.Displacement and stress distribution of top tray was proceeded on differ drawn step.Finally reasonable drawn order was determined,stable of top tray is effectively controlled,in addition,drawn efficiency is improved .
出处
《有色金属（矿山部分）》
2009年第6期51-55,共5页
NONFERROUS METALS(Mining Section）
关键词
上向分层胶结充填
有限元模拟
位移
应力
upper to lamination consolidated fill
finite element modeling
displacement
stress
