充填法采场结构参数优化设计  

Optimal Design of Stope Structural Parameters Using Back-Filling Method

作　　者：陶干强[1] 孙冰[1] 宋丽霞[1] 杨仕教[1] 曾晟[1] 

机构地区：[1]南华大学核资源与安全工程学院,湖南衡阳421001

出　　处：《采矿与安全工程学报》2009年第4期460-464,共5页Journal of Mining & Safety Engineering

基　　金：湖南省自然科学基金项目(07JJ3090)

摘　　要：采用弹塑性理论,综合考虑了国内某矿山矿体的赋存条件,建立了采场稳定性分析的三维有限元模型,研究了充填采矿法不同结构参数时采场的稳定性以及围岩应力和位移随矿房、矿柱尺寸以及采场控顶高度的变化情况.研究结果表明：采场最大压应力和最大拉应力随矿柱宽度增大而减少,随矿房宽度增大而增大;该矿山合理的采场结构尺寸为矿柱宽8 m,矿房宽10 m,控顶高度8～12 m.Using elastic-plasticity theory and considering the occurrence condition of a certain mine,we built a 3-D numerical model of stope stability,studied the stability of the stope with different structural parameters in back-filling mining method and analyzed stress and displacement of stope surrounding rock in accordance with structural parameters of stope such as pillar size,room size and stope lamination height.The results show that 1） the max compressive stress and max tensile stress in the stope decrease with the increase of pillar width and increases with the increase of room width,and 2） reasonable stope structure size in this mine is is 8m for pillar width,10m for room width,and 8~12m for controlled top height.

关 键 词：采场结构参数 充填采矿法 弹塑性理论 优化设计 

分 类 号：TD853[矿业工程—金属矿开采]