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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Dozer 'side-cutting' versus excavator side-casting on the highwall in dozer bulk push operations
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Dozer 'side-cutting' versus excavator side-casting on the highwall in dozer bulk push operations

机译：Dozer'侧切割'与挖掘机侧面铸造在戴塞散装推动操作中

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摘要

In open pit dozer bulk push operations, the material left resting against the highwall after blasting poses an issue. This is because dozers cannot physically get in behind the waste to begin the bulk pushing process. Instead, an excavator can be used to side-cast this waste for the dozers to access. An alternative technique is to have the dozers 'side-cut' the material, which involves the dozers running parallel to the wall, digging out the material, and eventually rotating their blades to begin bulk pushing. Industry practices suggest the latter technique is less productive and economical than using an excavator. However, such excavator side-casting 'economic viability' assumes that smaller/ancillary type excavators are used (i.e. less than 23 m~3 bucket capacity). So, what happens if some mine sites are restricted to using relatively larger excavators (> 23 m~3 bucket) that are preferred for higher priority digging tasks? When can they avoid using their excavator? This paper explores multiple scenarios that have been designed and developed to simulate data results, which identify conditions in which the dozer side-cutting technique becomes more economically viable than excavator side-casting in terms of decreased unit cost per loose cubic metre.
机译：在开放式斗篷解式散装推动操作中，爆破后留下靠近高墙的材料造成问题。这是因为Tozers无法在垃圾后面物理地进入批量推动过程。相反，挖掘机可以用来将这种废物侧面铸造，以便换乘器进入。替代技术是使偶氮侧切割的材料，这涉及与墙壁平行的换乘器，挖掘材料，并最终旋转它们的刀片以开始散装推动。行业实践表明后一种技术比使用挖掘机的生产力和经济效率低。然而，这种挖掘机侧铸造的“经济可行性”假设使用较小/辅助型挖掘机（即小于23米〜3桶容量）。那么，如果一些矿场仅限于使用相对较大的挖掘机（> 23 m〜3桶），则会发生什么，这是优选的优先考虑优先挖掘任务？他们什么时候可以避免使用他们的挖掘机？本文探讨了已经设计和开发的多种情景以模拟数据结果，该结果识别在每个松散的立方米的单位成本下降的单位成本方面比挖掘机侧面铸造更经济地可行的条件。

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