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ارزیابی کارایی، نرخ تولید و هزینه اسکیدر چرخ لاستیکی تاف | ||
| مجله منابع طبیعی ایران (منتشر نمی شود) | ||
| مقاله 14، دوره 61، شماره 1 - شماره پیاپی 1000375، فروردین 1388 اصل مقاله (192.64 K) | ||
| نویسندگان | ||
| مقداد جورغلامی؛ هوشنگ سبحانی؛ وحید اعتماد* | ||
| کلیدواژه‌ها | ||
| اسکیدر چرخ لاستیکی؛ تاف؛ مدل ریاضی پیش بینی زمان چوبکشی؛ تولید؛ نرخ ماشین؛ هزینه؛ سامانه گرده بینه کوتاه؛ تأخیر | ||
| عنوان مقاله [English] | ||
| Evaluation of productivity, machine rate, and costs on TAF skidder (case study: In Kheyroudkenar Forest) | ||
| چکیده [English] | ||
| Transportation of wood from the cutting areas to the roadside imposes highest expenses in the whole logging operations. This research deals with this matter and studies the production and cost rates of TAF Skidder in cut-to-length system. The study was carried out in Kheyroudkenar Educational and Research Forest Station at Nowshahr, Iran. Using continuous time studies, the effective factors of skidding including winching distances, volume, slope, number of logs and tree species were identified and recorded. Overall, 46 turns were recorded on TAF, and the collected data were analyzed and skidding models were developed. The results showed that the production rates for TAF were 5.93 m³/hr (including delay times) and 8.33 m³/hr (no delays). Production costs were 74,861 and 53,279 Rials/m³, respectively. Studying the changes in each variable while the other variables kept fixed showed that, except the annual utilization of the cost of machinery produces a parablic function, factors have a positive linear relation with cost. | ||
| کلیدواژه‌ها [English] | ||
| length system, to, Wheeled Skidder, Delay, TAF, Model of skidding turns time, Machine rate, cost of skidding, cut | ||
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آمار تعداد مشاهده مقاله: 807 تعداد دریافت فایل اصل مقاله: 918 |
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