• Title/Summary/Keyword: One-and two-stage two-way yarding

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Studies on the Design of Forest Road Network for Mechanized Yarding Operations (II) - Optimal road spacing and density - (기계화(機械化) 집재작업(集材作業)을 위한 노망정비(路網整備)에 관(關)한 연구(硏究)(II) - 적정임도간격(適正林道間隔) 및 임도밀도(林道密度) -)

  • Cha, Du Song;Cho, Koo Hyun
    • Journal of Korean Society of Forest Science
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    • v.83 no.3
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    • pp.299-310
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    • 1994

  • This study was carried out to examine the optimal road spacing and road density to minimize the total harvesting cost(road construction cost plus yarding cost) for mechanized yarding system to roadside by one - and two-stage two-way in Forestry build-up region. Chunchon-kun, Kangwon-do. The estimated road construction costs were ranged from ten million won to sixty million won per km. The results have indicated that cable crane was appropriate for yarding machine by one-stage, two-way, and estimated optimal road spacing was 1,698m~4,192m, averaged 3,087m, and road density was 3.44m/ha~8.44m/ha, and averaged 5. 12m/ha. In hilly terrain, combination of medium yarder and Logging bogie was suited to yarding machine by two-stage, two-way, and calculated optimal road spacing was 1,483m~3,481m, averaged 2,589m, and road density was 4.05m/ha~9.46m/ha, averaged 5.90m/ha. In steep terrain, combination of medium yarder and jinsung winch was suited, and estimated optimal road spacing was 1,693m~3,982m, averaged 2,960m, and road density was 3.68m/ha~8.64m/ha, averaged 5.38m/ha.

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