基建探矿缺失下的金川东部贫矿地质工作方法研究

Study on Geological Working Method of Lean Ores in East Jinchuan Mine without Enough Geological Exploration in Infrastructure Construction Period

金川铜镍矿东部贫矿受项目经费及工程进度影响,在矿山开发开采前未能开展基建探矿工作,为确保矿山开发开采顺利进行,通过研究确定“地质编录+系统采样分析”探采结合的方法,并以合理的工程网度控制,达到准确控制矿体形态以及矿石品位的目的,为回采做好地质基础服务。

Because of the influences of project capital and project progress,no geological exploration in infrastructure construction period has been conducted in lean ores of east Jinchuan nickel mine before mining.For ensuring the successful mine development,a joint method including geological logging and systematical sampling and analysis is adopted after study,and a proper engi-neering grid control is also utilized to precisely control the shape of ore bodies and ore grade,which aims to provide a geological support for stoping.