Open Access CAAS Agricultural Journals Journal of Forest Science

Economics of a hydraulic hammer for forest road construction in a mountainous area

A. Parsakhoo, S.A. Hosseini, M.R. Ghaffariyan

https://doi.org/10.17221/59/2011-JFSCitation:Parsakhoo A., Hosseini S.A., Ghaffariyan M.R. (2011): Economics of a hydraulic hammer for forest road construction in a mountainous area. J. For. Sci., 57: 565-573.
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 This research deals with productivity and cost of rock disintegration and side casting of materials with the use of a hydraulic hammer mounted on a PC 220 Komatsu crawler excavator, which is used on rocky slopes of Hyrcanian forests of Iran. A continuing time study was applied during the road construction. To estimate the volume of rock disintegration, the average end area equation was used. The increasing cut-slope height decreased productivity. The productivity of hydraulic hammer averaged at 5.5 m3·h–1 for the mean work volume of 5.07 m3·m–1. The unit cost of the system was 7.7 €·m–3. From the economic point of view a new machine with multipurpose system could be recommended for forest road construction operations in rocky areas.  

Keywords:

 hydraulic hammer; rock disintegration; cut slope; productivity; costs

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