摘要
复杂顶板是指存在较多不利于采场结构稳定性因素的顶板,其普遍存在金属与非金属矿山井下开采中,对空场采矿法的矿房矿柱尺寸留设影响较大。因此在该顶板条件下采场结构参数的合理优化设计已成为一个亟待解决的课题。以凤凰锰矿为例,针对该矿复杂顶板进行稳固性分级,在ANSYS-FLAC3D的软件平台下对各级顶板条件下不同采场结构参数的采场顶板进行稳定性分析,得出适合于该矿的采矿方法为8~12m矿房方案。这种将顶板稳固性分级与数值模拟相结合研究方法为复杂顶板条件下采场结构参数优化提供了一种新思路。
The complex roof had many negative factors for the stability of stope structure,which generally existed in the underground mining of metal and nonmetal mine,with great influence on the sizes of rooms and pillars in open stope method.Therefore,the rational optimization design of stope structure parameters under the roof should be put forward urgently.Taking Phoenix Manganese Mine as an example,the stability classification of complex roof was carried out,and the stability analysis of stope roof with different parameters under different roof conditions were conducted by ANSYS-FLAC3 D.Then,it was obtained that the stope span of 8~12m was suitable for the mining method.This research method,combining roof stability classification and numerical simulation,provided a new idea for parameter optimization of stope structure under complex roof.
出处
《矿业研究与开发》
CAS
北大核心
2015年第3期1-3,共3页
Mining Research and Development
关键词
复杂顶板
采场结构参数
稳固性分析
Complex roof,Parameter of stope structure,Stability analysis
