摘要
兴发集团兴隆矿利用废石破碎成-10mm且具有连续级配的碎渣作为充填骨料,采用泵送混凝土充填工艺,经充填料浆流动性试验及强度配比试验确定,其充填浓度为82%、砂灰比为4时,能够满足泵压输送及回采强度的要求。
The crushed-stone which is been broken into-10 mm from waste rock and with continuous gradation has been used as backfill aggregate in Xinglong Mine of Xingfa Chemical Group.And the pumping concrete backfill process has been selected in this mine.After carrying out the slurry mobility tests and ratio tests,the concentration of the slurry has been chose as 82% and the aggregate-to-cement ratio has been chose as 4.And these parameters can meet the requirements of pumped transmission and stoping strength.
出处
《中国矿业》
北大核心
2014年第S2期219-221,共3页
China Mining Magazine
基金
“中低品位磷矿清洁充填与加工关键技术研究及示范”项目资助(编号:2013BAB07B03)
国家十二五科技支撑计划“深部金属矿床开采过程充填材料与工艺优化技术”资助(编号:2013BAB02B02)
关键词
混凝土泵送充填
充填参数
料浆流动性
pumping concrete backfill
backfill parameters
slurry mobility
