| 爆破效果影响因素分析 |
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| 引用本文： | 李有臣,董宪伟,蔡嗣经.爆破效果影响因素分析[J].有色金属(矿山部分),2011,63(1):65-69. |
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| 作者姓名： | 李有臣 董宪伟 蔡嗣经 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083;本溪钢铁(集团)有限责任公司,辽宁本溪,117000
2. 北京科技大学土木与环境工程学院,北京,100083 |
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| 摘 要： | 爆破作为采矿工艺的重要环节,其效果的好坏直接关系到矿山的生产.爆破后矿石的贫化、损失、大块产出率、以及爆破事故的发生都对矿山的生产有重要的影响.本文作者通过多年的矿山工作经验,理论联系实际,分别从采矿大孔的设计、施工管理以及爆破作业过程等几个方面认真详细地分析了对爆破效果的影响,并提出了应采取的相应措施.
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| 关 键 词： | 爆破 损失 贫化 大块率 措施 |
Seepage and Stress Coupling Analysis in Nanfen Open Pit Mine Dam |
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| Authors: | LI Youchen DONG Xianwei and CAI Sijing |
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| Affiliation: | LI Youchen1,2,DONG Xianwei1,CAI Sijing1(1.Civil and Environment Engineering School,USTB,Beijing 100083,China,2.Benxi Iron & Steel (Group) Co.LTD,Benxi 117000,Liaoning,China ) |
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| Abstract: | A finite difference software (FLAC3D) is used to establish 3D model of Nanfen open pit mine, the stress-strain and seepage is simulated, and stress state of the minimum and maximum water lever is compared. Simulation results show the low stress area, the value of principal stress and displacement, by choosing different core wall to adjust the low stress area, which will provide evidence to improve the stability and safety of the dam. The result also showed the method can simulate the seepage and stress field in the coupling, can evaluate the safety effect of dam better, which will play a certain role in anti-seepage reinforcement of similar engineering. |
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| Keywords: | FLAC3D |
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