| 露天边坡稳定性影响因素分析及防治措施 |
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| 引用本文： | 郑禄璟,郑禄林,常晓娜,韩斌.露天边坡稳定性影响因素分析及防治措施[J].金属矿山,2014,43(2):131-136. |
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| 作者姓名： | 郑禄璟 郑禄林 常晓娜 韩斌 |
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| 作者单位： | 1.贵州大学资源与环境工程学院，贵州 贵阳 550001；2.英属哥伦比亚大学采矿学院，加拿大 温哥华 V5Z1L5；3.北京科技大学土木与环境工程学院，北京 100083 |
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| 摘 要： | 陡帮开采条件下,露天边坡的稳定对生产的持续性及高效性影响重大。综合考虑锦丰露天金矿受岩体结构面控制的平面破坏、楔形破坏、倾倒破坏、圆弧形破坏、土质边坡破坏5种失稳类型,以及地表地下水、开挖爆破的影响,分别提出长锚索+喷锚网支护、长锚索+钢网(局部区域喷锚网)支护、长锚索+喷锚网+抗滑桩支护、长锚索+钢带支护、HDPE防渗膜等支护手段,地表截(排)水沟及仰斜泄水泄压孔等疏水措施,及逐孔起爆修边爆破的爆破控制方案,有效保证了陡帮开采条件下的露天边坡稳定性。同时结合矿山多年实践经验,阐述了各种边坡加固方法的实际应用效果。
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| 关 键 词： | 露天边坡支护 边坡稳定性 地下水控制 控制爆破 |
Influencing Factor Analysis and Control of Open Pit Slope Stability |
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| Zheng Lujing,Zheng Lulin,Chang Xiaona,Han Bin.Influencing Factor Analysis and Control of Open Pit Slope Stability[J].Metal Mine,2014,43(2):131-136. |
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| Authors: | Zheng Lujing Zheng Lulin Chang Xiaona Han Bin |
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| Affiliation: | 1.College of Resource and Environment Engineering，Guizhou University,Guiyang 550001,China；2.College of Mining，University of British Columbia，Vancouver V5Z1L5，Canada；3.School of Civil & Environmental Engineering，University of Science and Technology Beijing,Beijing 100083,China; |
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| Abstract: | Under steep slope mining，the slope stability of open pit greatly affects the continuity and efficiency of production.Through fully considering 5 failure types of planar，wedge，toppling，circular and loose soil slope and its effect on surface water，groundwater and excavation blasting in Jinfeng Gold Mine，various reinforcement methods were proposed as follows：long cable bolt+ spray anchor net，long cable bolt+ steel mesh，long cable bolt+ spray anchor net+ anti-slide pile，long cable bolt+ steel mesh stripe and HDPE membrane.Some drainage measures as surface ditches and upward-inclined dewatering/ depressurization holes and the hole-by-hole blasting with trim shot controlled method effectively guaranteed the slope stability of open pit under steep slope mining.Meanwhile，the practical effects of these reinforcement methods were elaborated combining with years of engineering practice. |
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| Keywords: | Open pit slope support Slope stability Groundwater control Controlled blasting |
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