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| 1 | Undersea safety mining of the large gold deposit in Xinli District of Sanshandao Gold Mine显示文摘The exploration of undersea resources becomes popular as land resources decrease. Researches were conducted with emphasis on the safety and efficiency of undersea mining of the large gold deposit in Xinli District of Sanshandao Gold Mine. A series of tests for the physical and mechanical characteristics of rock mass were carried out, and the three-dimensional geo-stress distribution was tested in the mining area. Further, a similar experimental simulation platform, which revealed the mechanism of water inrush and ascertained the reasonable thickness of the safety isolate layer, was established for the undersea mining. Meanwhile, the feasibility of cancelling the ore pillars and the safety conditions was checked by numerical simulation. The simulation results show that it is safe to exploit the ore body below the 85 m level (presently, the exploitation level is below 160 m in Xinli District), and the ore pillars can be cancelled below the 560 m level. Furthermore, a novel backfill method was designed to reduce the rock strata disturbance and settlement, and the settlement of roof strata was monitored during the mining process. Engineering practice shows that the settlement of roof strata was small and that no disaster happened. This indicates that the undersea safety mining technology of the large gold deposit is achieved in Xinli District. | Zhi-xiang Liu Wen-gang Dang Xian-qun He | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，7： | 14 |
| 2 | 矿房与矿柱稳定性的断层影响数值模拟研究显示文摘运用连续介质快速拉格朗日差分法,对某金属矿山有无断层及不同位置、倾角断层等4种方案条件下的采场稳定性进行分析。数值计算中采用平面应变模型和莫尔-库仑屈服准则,分别就各方案的最大主应力、矿房顶板中央下沉量、矿柱中央剪应变增量及整体安全系数模拟结果进行对比分析。结果表明:断层对最大主压应力影响不明显,但对最大主拉应力影响较大;断层对采场位移影响较大,尤其是穿过矿柱的断层对采场位移影响最为明显;有无断层及不同断层倾角、位置对采场剪应力影响不大,但对采场整体稳定性有很大影响。 | 王兴明 付玉华 张耀平 | 2006 | 金属矿山2006，35，12： | 5 |
| 3 | 复杂条件下露天转地下开采断层对采空区影响研究显示文摘针对铜绿山Ⅰ号矿体露天转地下开采的复杂情况,采用FLAC3D分析矿体上盘断层破碎带对采空区的影响,以指导现场施工。分别建立有断层模型和无断层模型,对2模型采用同一种开挖方式:布置1#采场及2#采场,2采场之间留下隔离立柱用于支撑顶板。从压应力及位移量2方面比较2个模型的开挖结果,研究表明,断层使采矿作业条件恶化,主要表现在2个方面:①断层降低了矿体上盘岩体的整体性和连续性,使采场两帮压应力增大0.01~0.45 MPa;②顶柱厚度较大时,断层对1#采场几乎不产生影响,对2#采场影响较大,导致其顶板下沉量增大,表现为2#采场顶板绕立柱顶部旋转;当顶柱厚度h≤16 m时,断层对2个采场均产生影响,均导致其顶板下沉量明显增大,表现为2采场顶板绕1#采场左帮顶部旋转。 | 史秀志 黄刚海 张舒 | 2009 | 金属矿山2009，38，12： | 4 |
| 4 | 固定资产的税收与会计制度的比较研究显示文摘本文主要针对固定资产在我国税法和会计制度中的定义规定、计算差异、确认差异等方面进行了较详细地分析。 | 李瑞卿 | 2002 | 山西统计2002，，10： | 0 |
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