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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >A model to calculate blasting costs using hole diameter, uniaxial compressive strength, and joint set orientation
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A model to calculate blasting costs using hole diameter, uniaxial compressive strength, and joint set orientation

机译：使用孔径，单轴抗压强度和联合套合取向计算爆破成本的模型

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Calculation of the blasting costs plays a significant role in blast pattern design and reduction of the final extraction cost of minerals. Blasting costs include drilling costs, blasting materials costs, and additional costs of blasting operations. We assessed information from three copper mines in Iran, and found that there is a significant relationship between blasting costs and hole diameter. A relationship was derived to calculate blasting costs per cubic metre as a function of hole diameter, bench height, uniaxial compressive strength, joint set orientation, the cost of drilling, and the unit cost of explosives. This model will enable engineers to estimate blasting costs prior to designing the blast pattern. Based on the model, an increase in the rock strength and the angle between the bench face and the main joint set will increase the blasting cost. On the other hand, the costs will decrease when the hole diameter increases for every range of uniaxial compressive strength.
机译：爆破成本的计算在爆炸模式设计中起着重要作用，并降低了矿物的最终提取成本。 爆破成本包括钻井成本，爆破材料成本和爆破操作的额外成本。 我们评估了来自伊朗的三个铜矿的信息，发现爆破成本与孔径之间存在显着的关系。 由于孔径，台高，单轴抗压强度，关节组定向，钻孔成本以及爆炸物的单位成本，得到了每立方米计算爆破成本。 该模型将使工程师能够在设计爆炸模式之前估计爆破成本。 基于该模型，岩石强度的增加和台面与主接头组之间的角度将增加爆破成本。 另一方面，当孔直径增加对于各种单轴抗压强度时，成本将降低。

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