摘要
基于喀拉通克铜镍矿充填骨料优化试验结果,选用掺加冶炼渣的混合骨料作为充填骨料,进而开展冶炼渣充填工业试验。采用地质钻探的手段,对掺加冶炼渣的混合骨料原位胶结充填体质量进行评价。试验结果表明,在灰砂比为1∶4时,E3进路原位胶结充填体强度高于S4进路(未加冶炼渣),证明掺加冶炼渣优化了充填骨料级配,提高了原位胶结充填体强度;在灰砂比为1∶5时,E6进路原位充填体强度低于E3进路,但是满足矿山充填强度设计要求,结合井下取样强度和取芯样本的完整性,建议矿山充填进路假底层采用灰砂比1∶5,充填质量稳定后,再进一步加大冶炼渣的用量。
Based on the experiment optimization of filling aggregates in the Kalatongke copper-nickel mine,the mixed aggregate mixed with smelting slag is selected as the filling aggregate,and then the smelting slag filling industrial test is carried out.The quality of the in-situ cemented backfill of mixed aggregate with smelting slag is evaluated by means of geological drilling.The test results show that the in-situ strength of the cemented backfill of the E3 route is higher than that of the S4 route (without smelting slag) in the1 ∶4 of cement-sand ratio,which proved that the gradation of filling aggregate is optimized and the in-situ strength of cemented backfill is improved by adding smelting slag;the in-situ strength of the cemented backfill of the E6 route is lower than that of the E3 route in the1 ∶5 of cement-sand ratio,but the design requirements of filling strength is meet.Combined with the strength of test block and the integrity of the coring sample,it is recommended that the1 ∶5 of cement-sand ratio should be used in filling bottom layer,after the stability of filling quality,the amount of smelting slag could be increased.
作者
陈寅
郭利杰
魏晓明
李守强
杨超
CHEN Yin;GUO Lijie;WEI Xiaoming;LI Shouqiang;YANG Chao(Xinjiang Kalatongke Mining Co.,Ltd.,Fuyun 836107,China;BGRIMM Technology Group,Beijing 100160,China;National Center for International Research on Green Metal Mining,Beijing 102628,China)
出处
《中国矿业》
北大核心
2019年第A01期234-237,共4页
China Mining Magazine
基金
国家重点研发计划“基于有色冶炼渣的绿色充填胶凝材料制备及其性能合作研究”资助(编号:2017YFE0107000)
国家重点研发计划“深部金属矿协同开采理论与技术”资助(编号:2016YFC0600709)
关键词
冶炼渣
混合骨料
原位取芯
充填体质量
smelting slag
mixed aggregates
in-situ coring
quality of cemented backfill
