CAJ | 학술논문

富家矿自转入30 m中段以后，矿体厚度逐渐变薄，致使采场频繁转层，加之受现有采场结构参数、爆破技术及采充矛盾限制，对提高回采强度已形成了技术制约。为全面、有效地提高回采强度，富家矿改原有的“下向倾斜六角形高进路分层胶结充填采矿法”为“下向高分层机械化胶结充填采矿法”。通过扩大进路断面，使用铲运机代替电耙子出矿，采用阶梯式充填等技术措施，取得了采矿损失率1.2％、矿石贫化率2.97％显著的回采效果。
부가광자전입30 m중단이후，광체후도축점변박，치사채장빈번전층，가지수현유채장결구삼수、폭파기술급채충모순한제，대제고회채강도이형성료기술제약。위전면、유효지제고회채강도，부가광개원유적“하향경사륙각형고진로분층효결충전채광법”위“하향고분층궤계화효결충전채광법”。통과확대진로단면，사용산운궤대체전파자출광，채용계제식충전등기술조시，취득료채광손실솔1.2％、광석빈화솔2.97％현저적회채효과。
Since Fujia Mine turned into the 30m level,the orebody has gradually become thinner so that the stope has to frequently shift between strata .Moreover,limited by structural parameters ,blasting techniques and the contradic-tion between stoping and filling ,the room of stoping strength improvement is technically confined .To comprehensively and effectively improve stoping strength , Fujia Mine renovated the previous downward dipping hexagonal high access slicing and cemented filling stoping method into downward high slicing mechanized cemented filling stoping method . By widening access section , replacing electric rake with scraper for ore drawing and adopting multistep filling , the method achieves significant stoping indexes including a loss rate of 1.2 %and ore dilution rate of 2.97 %.