전목 및 단목 집재작업시스템에서 작업시간 및 공정 분석 (An Analysis of the Operational Time and Productivity in Whole-tree and Cut-to-Length Logging Operation System)

서지정보

· 발행기관 : 한국산림과학회
· 수록지 정보 : 한국산림과학회지 / 101권 / 3호 / 344 ~ 355페이지
· 저자명 : 김민규, 박상준

초록

임목수확작업시스템 구축과 효율적인 임목수확작업 기술을 보급하기 위해 타워야더 및 스윙야더 등에 의한전목집재작업시스템과 굴삭기 그래플 등에 의한 단목집재작업시스템의 작업시간 및 공정을 분석하였다. 전체 조사작업시간을 기준으로 분석한 1 cycle당 작업시간은 전목집재작업시스템에서 체인톱에 의한 벌목 46.6초/cycle, 타워야더에 의한 집재 480.6초/cycle, 스윙야더에 의한 집재 287.4초/cycle, 체인톱에 의한 조재 155.14초/cycle로 나타났다. 또한 단목집재작업시스템에서는 체인톱에 의한 벌목 및 조재 225.65초/cycle, 굴삭기 그래플에 의한 단목집재 4,972초/cycle, 지엽집재 3,143초/cycle로 나타났으며, 바퀴식 미니포워더에 의한 소운재 4,688초/cycle, 굴삭기 그래플 및 소형운재차에 의한 소운재 2,118초/cycle로 나타났다. 전목집재작업시스템의 작업공정에서 체인톱에 의한 평균 벌목공정이 57.89 m3/일, 타워야더에 의한 평균 집재공정이 20.3 m3/일, 스윙야더에 의한 평균 집재공정이 31.55 m3/일, 체인톱에 의한 평균 조재공정이 20.3 m3/일로 나타났다. 또한, 단목집재작업시스템의 작업공정에서 체인톱에 의한 평균 벌목 및 조재공정이 11.96 m3/일, 굴삭기 그래플에 의한 평균 단목집재공정이 34.75 m3/일, 굴삭기 그래플에 의한 평균지엽수집공정이 37.66 m3/일, 굴삭기 그래플에 의한 평균 작업로의 개설공정이 73.8 m/일로 나타났으며, 바퀴식 미니포워더와 굴삭기 그래플 및 소형 운재차에 의한 평균 소운재 작업공정이 각각 15.73 m3/일과 65.03 m3/일로 나타났다.

영어초록

This study was conducted to analyze on the operational time and productivities of logging operations in whole-tree logging operation system by tower-yarder and swing-yarder, and in cut-to-length logging operation system by excavator with grapple in order to establish the efficient logging operation system and to spread logging operation technique. In the analysis of operational time, in case of whole-tree logging operation system, the felling time was 46.6sec/cycle by chain saw, the yarding time was 480.6 sec/cycle by tower-yarder, the yarding time was 287.4 sec/cycle by swing-yarder and the bucking time was 155.14 sec/cycle by chain saw. In case of the cut-to-length logging operation system, the felling and bucking time was 225.65 sec/cycle by chain saw, the cut-to-length extraction time was 4,972sec/cycle by excavator with grapple, the branches and leaves extraction time was 3,143 sec/cycle by excavator with grapple. The forwarding time was 4,688 sec/cycle by wheel type mini-forwarder, the forwarding time was 2,118 sec/cycle by excavator with grapple and small forwarding vehicle. In the analysis of operational productivities, in case of whole-tree logging operation system, the average felling performance was 57.89 m3/day by chain saw, the average yarding performance was 20.3 m3/day by tower-yarder, 31.55 m3/day by swing-yarder respectively, the average bucking performance was 20.3 m3/day by chain saw. In case of the cut-to-length logging operation system, the average felling and bucking performance was 11.96 m3/day by chain saw, the average cut-to-length extraction performance was 34.75m3/day by excavator with grapple, the average branches and leaves extraction performance was 37.66 m3/day by excavator with grapple, the average length of operation road construction was 73.8 m/day by excavator with grapple.
The average forwarding performance by wheel type mini-forwarder and the average forwarding performance by excavator with grapple and small forwarding vehicle was 15.73 m3/day and 65.03 m3/day, respectively.

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