摘要
矿柱回收顺序的选取对采空区处理过程中围岩的稳定性、安全性具有重大意义,矿柱回收顺序成为采空区处理课题研究的首要问题。采用FLAC3D,对东升庙铅锌矿2#采空区矿柱从一端到另一端顺序回采、从两端到中央推进回采、间隔跳采、从中央到两端推进这4种矿柱回收方法进行数值模拟,通过对比分析研究表明,比较合理的矿柱回收顺序为从中央向两端推进,可为安全生产提供保障。
How to arrange the sequence of pillar recovery is of great significance to keep the stability and safety of surrounding rocks in mined-out processing. The sequence becomes the key issue to study the goat＂ treatment. FLAC3D numerical simulation is adopted to simulate four kinds of pillars＇recovery at No. 2 goaf in Dongshenmiao lead-zinc deposit, that is, from one end to the other, from two ends to the middle, interval mining, and from the middle to both ends. Through con- trasting and analyzing, a more rational recovery sequence of from the middle to both ends is obtained, which can guarantee the production safety.
出处
《金属矿山》
CAS
北大核心
2013年第2期10-13,共4页
Metal Mine
关键词
采空区处理
矿柱回收顺序
数值模拟
稳定性分析
Goal processing, Sequence of pillar recovery, Numerical simulation, Stability analysis
