黄金
黃金
황금
GOLD JOURNAL
2014年
6期
36-38,39
,共4页
点柱%上向水平%充填%数值模拟
點柱%上嚮水平%充填%數值模擬
점주%상향수평%충전%수치모의
pointed pillars%upward horizontal slice%filling%numerical simulation
针对大红山铜矿西部矿段的点柱式上向水平分层充填采矿法，采用FLAC3D数值模拟软件对该采矿方法的设计点柱参数进行稳定性分析，模拟开挖和充填状态下顶底板位移及点柱、围岩弹塑性应力状态。结果表明，留设4 m ×4 m规格的点柱，沿走向间距16 m，沿倾向间距15 m，围岩及矿柱是不稳定的，易发生剪切破坏。建议开展点柱尺寸和间距优化研究，以确保采场稳定。
針對大紅山銅礦西部礦段的點柱式上嚮水平分層充填採礦法，採用FLAC3D數值模擬軟件對該採礦方法的設計點柱參數進行穩定性分析，模擬開挖和充填狀態下頂底闆位移及點柱、圍巖彈塑性應力狀態。結果錶明，留設4 m ×4 m規格的點柱，沿走嚮間距16 m，沿傾嚮間距15 m，圍巖及礦柱是不穩定的，易髮生剪切破壞。建議開展點柱呎吋和間距優化研究，以確保採場穩定。
침대대홍산동광서부광단적점주식상향수평분층충전채광법，채용FLAC3D수치모의연건대해채광방법적설계점주삼수진행은정성분석，모의개알화충전상태하정저판위이급점주、위암탄소성응력상태。결과표명，류설4 m ×4 m규격적점주，연주향간거16 m，연경향간거15 m，위암급광주시불은정적，역발생전절파배。건의개전점주척촌화간거우화연구，이학보채장은정。
For the upward horizontal slice stoping and filling method with pointed pillars applied in west mining section in Dahongshan Copper Mine ,stability analysis of the parameters of designed pointed pillars is made by using FLAC3D ,simulating the elastic-plastic stress state of the pointed pillars and surrounding rocks and the displacement of roof and floor plate during excavation and filling .Results indicate that the 4 m ×4 m pillars with strike separation 16 m and dip separation 15 m are unstable ,shear failure easy to occur .This paper suggests that size of pillars and separation of pointed pillars be optimized to make the stope stable .
