An alternative skidding technology to the current use of crawler tractors in Alpine logging operations

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• 作者：Raffaele Spinelli^a ; ^{spinelli@ivalsa.cnr.it} ; Natascia Magagnotti^b ; ^{magagnotti@ivalsa.cnr.it} ; Rubé ; n Laina Relañ ; o^c ; ^{ruben.laina@upm.es}
• 关键词：Skidding ; Productivity ; Energy ; Cost ; Comparison
• 刊名：Journal of Cleaner Production
• 出版年：2012
• 期刊代码：47_09596526
• 类别：ce
• 出版时间：August, 2012
• 卷：31
• 期：Complete
• 页码：73-79
• 文件大小：789 K

摘要

The study investigated the possibility of replacing aggressive crawler tractors used in Alpine logging operations with a new rubber-tired mini-skidder, in the same size and cost class. Replacement proved desirable in terms of environmental protection and labor safety, and offered substantial economic benefits. While it required a moderate additional initial investment, extraction cost was reduced between 30 and 50%. On the average skidding distance of 130 m, productivity was 3.2 and 4.1 m³ per scheduled machine hour, respectively for the crawler and the skidder. Depending on extraction distance, skidding cost ranged from 19 to 47 鈧?#xA0;m³ for the crawler, and from 13 to 23 鈧?#xA0;m³ for the skidder. A model was developed to estimate machine productivity, extraction cost, and energy use for both machines (conventional and innovative) under a variety of work conditions typical of non-industrial private forestry. This information can be used for operational costing, planning and optimization. It can also serve to measure energy savings obtained through machine replacement.