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中深孔爆破强制放顶 被引量:9
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作者 于富 《煤炭技术》 CAS 2008年第10期88-90,共3页
双鸭山矿业集团新安煤矿东翼三采区十上层煤顶板坚硬,放顶困难,易形成大面积悬顶。该矿通过采用中深孔爆破强制放顶,实现了安全生产。
关键词 中深孔爆 放顶 安全生产
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中深孔穿爆技术经济参数间的模糊系统设计及应用分析 被引量:1
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作者 戴剑勇 杨仕教 《南华大学学报(理工版)》 2003年第1期59-64,共6页
针对矿山开采工艺技术经济参数间的灰色性与不确定性的特点 ,运用模糊逻辑推理的方法对影响矿山开采成本的关键因素作了有益的探索 ,揭示了开采工艺技术经济间映射关系的关联规律 。
关键词 穿 技术经济参数 模糊控制系统 矿山开采工艺 开采成本 设计方案 灰色性 不确定性 模糊逻辑推理
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台阶中深孔锥形掏槽崩落法在双层空区处理中的应用 被引量:1
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作者 聂永祥 葛虎胜 《采矿技术》 2010年第6期27-29,共3页
栾川龙宇钼业公司南泥湖矿山公司的双层采空区给露天台阶生产带来了极大的危害,经分析论证,采用台阶中深孔锥形掏槽崩落法对双层空区进行了爆破处理,并取得了较好的效果。介绍了空区的赋存情况,爆破处理方案及处理的效果。
关键词 双层采空区 空区处理 中深孔爆 锥形掏槽
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模糊控制系统及其在露天采矿成本优化中的应用
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作者 周致远 戴剑勇 《矿冶》 CAS 2004年第2期10-13,32,共5页
介绍了模糊控制系统的设计体系、穿爆模糊推理系统设计方案,并以矿山开采应用实例,论述了模糊逻辑推理系统在开采技术经济参数优化中的作用。揭示了开采工艺技术经济指标间的关联规律,对矿山开采效益的提高具有参考价值。
关键词 露天采矿 穿 开采成本 模糊逻辑推理
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Numerical simulation of blasting effect with divided charge structure 被引量:1
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作者 Hu Tao Li Xianglong +1 位作者 Guan Si He Lihua 《Engineering Sciences》 EI 2014年第6期39-45,共7页
This paper numerically simulates the stress development and generates a three-dimensional model of the medium-length hole blasting in infinite rock mass for continuous charge and divided charge in blasting by using th... This paper numerically simulates the stress development and generates a three-dimensional model of the medium-length hole blasting in infinite rock mass for continuous charge and divided charge in blasting by using the large-scale nonlinear dynamic analysis software LS-DYNA and the elastic-plastic model ~*MAT_PLASTIC_KINEMATIC and JWO-EOS.The differences of the decreasing rate in Von Mises effective stress of blasting,element effective stress peak of free surface,bore wall stress and acceleration are investigated.It is shown that divided charge could greatly improve the blasting effect by engineering blasting practice. 展开更多
关键词 medium-length hole bench blasting divided charge ANSYS/LS-DYNA numerical simulation
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Research on the control technology of medium-length hole blasting fragmentation in underground mine
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作者 Zhao Yanwei He Dongmei Liu Junxuan 《Engineering Sciences》 EI 2014年第6期52-57,共6页
The scalloped medium-length hole blasting mining method used in Dahongshan Copper Mine accounted for more than 61%of the total amount of mining,but the large boulder yield restricted the intensity of ore supply for mi... The scalloped medium-length hole blasting mining method used in Dahongshan Copper Mine accounted for more than 61%of the total amount of mining,but the large boulder yield restricted the intensity of ore supply for mines,and the average boulder yield was as high as 22.7%.In order to develop the mine production efficiency,the circular medium-length hole blasting technology was proposed and field tests were carried out.The test results showed that circular medium-length hole blasting mining can reduce the average boulder yield to 10.3%.Compared with the traditional scalloped medium-length hole blasting mining,the average boulder yield was decreased by 12.4%.The daily yield of ore for the panel on duty was increased by 152.29 t,and the growth rate was 51.1%.The new technology can reduce the time for the handling of boulder and the consumption of explosives and detonators for recrushing,and increase the efficiency of mining while reduce the mining cost,which has received good blasting effects. 展开更多
关键词 scalloped medium-length hole blasting circular medium-length hole blasting lump ore blastingeffect
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