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首页> 外文会议>SME annual meeting exhibit;CMA National Western Mining conference >A DISCUSSION ON TBM CUTTER CHANGE TIME AND CUTTER LIFE
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A DISCUSSION ON TBM CUTTER CHANGE TIME AND CUTTER LIFE

机译：关于TBM切刀更换时间和切刀寿命的讨论

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Estimation of the cutter life and cost is a part of evaluating performance for a hard rock TBM in any project. Various approaches has been proposed for calculation of disc cutter life in various rock types based on machine specifications and rock strength and abrasivity. Cutter change time is a parameter that is used in some of the estimates and is defined as the average time required for changing a cutter on the cutter head and cutter life is the number of cubic meters of excavated rock per each disc cutter. Analysis of cutter life information of several tunnel projects from around the world has revealed that the published models for estimation of cutter consumption require some revisions to offer a more accurate prediction. The preliminary analysis of data shows that the average cutter change time is approximately 66 minutes for different cutter sizes and there is a minimal difference between corresponding cutter change times of the large (e.g. 19 or 20 in) versus smaller cutters (e.g. 15.5 to 17 in). This paper reviews the available and published cutter life data from various projects. It also introduces new models for estimation of cutter life and cutter change time as part of TBM down time and utilization analysis.
机译：评估刀具寿命和成本是评估任何项目中硬岩TBM性能的一部分。已经提出了各种方法，用于根据机器规格以及岩石强度和磨蚀性来计算各种岩石类型下的圆盘铣刀寿命。切刀更换时间是一些估计中使用的参数，定义为在切刀头上更换切刀所需的平均时间，切刀寿命是每个圆盘切刀的挖掘岩石的立方米数。对来自世界各地的多个隧道项目的刀具寿命信息的分析表明，已发布的估算刀具消耗的模型需要进行一些修订，以提供更准确的预测。数据的初步分析表明，对于不同尺寸的切刀，平均切刀更换时间约为66分钟，在大型切刀（例如19或20英寸）与较小切刀（例如15.5至17英寸）的相应切刀更换时间之间存在最小差异。 ）。本文回顾了来自各个项目的可用和已发布的刀具寿命数据。作为TBM停机时间和利用率分析的一部分，它还介绍了用于估计切刀寿命和切刀更换时间的新模型。

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