首页> 外文会议>Annual national meeting American Society for Surface Mining and Reclamation >ASSESSMENT OF HILLSLOPE DESIGNS USING RUSLE AT THE COEUR ROCHESTER MINE, LOVELOCK, NV
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ASSESSMENT OF HILLSLOPE DESIGNS USING RUSLE AT THE COEUR ROCHESTER MINE, LOVELOCK, NV

机译:在Coeure Rochester Mine使用风格的山坡设计评估,Lovelock,NV

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The Coeur Rochester Mine is a mountain-top, open-pit, heap-leach operation engaged in the production of silver and gold. The Revised Universal Soil Loss Equation (RUSLE) was used to assess the erosion potential of various reclamation-hillslope designs at this mine. Soil-loss estimates were computed for reclaimed rock-disposal and leach-pad sites as well as natural, undisturbed, sites. Factor inputs reflected the expected post-reclamation hillslope characteristics. The estimated average annual soil loss from the natural hillslopes ranged from 0.16-1.77 T/ha (0.07-0.79 t/ac). The estimated soil loss from the various designs for hillslopes developed on rock-disposal sites ranged from 0.22-3.41 T/ha/yr (0.10-1.52 t/ac/yr). The estimated soil loss from the various designs for hillslopes developed on leach-pad sites ranged from 0.04-0.22 T/ha/yr (0.02-0.10 t/ac/yr). The low soil-loss rates are the result of low R- and C-factor values coupled with a low to moderate K-factor values. These estimates were carefully considered in the selection of appropriate hillslope designs. RUSLE is a powerful tool for assessing the erosion potential of various hillslope designs during the reclamation-planning process.
机译:Coeur Rochester矿山是一家山顶,露天坑,堆浸出的垃圾运营,从事银和金的生产。修订后的通用土壤损失方程(风格)用于评估该矿井各种回收山坡设计的侵蚀潜力。对再生岩石处理和浸出垫板以及自然,不受干扰的地点来说计算了土壤损失估计。因子投入反映了预期的回收后山坡特征。自然山坡的估计平均年土壤损失范围从0.16-1.77 t / ha(0.07-0.79 t / ac)。在岩石处理地点开发的山坡各种设计的估计土壤损失范围为0.22-3.41 T / HA / Yr(0.10-1.52吨/ ac / yr)。在Leach-Pad站点上开发的山坡各种设计的估计土壤损失范围为0.04-0.22 T / HA / YR(0.02-0.10吨/ ac / yr)。低土壤损失率是低R-和C因子值的结果,其与低于中等k因子值耦合。在选择适当的山坡设计时经过仔细考虑这些估计。 Rusle是一种强大的工具,用于评估在填海计划过程中各种山坡设计的侵蚀潜力。

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