Full text of this article is only available in PDF format.

Paavo Yli-Vakkuri (email)

Aikatutkimuksia metsäojitusten kivitöistä.

Yli-Vakkuri P. (1954). Aikatutkimuksia metsäojitusten kivitöistä. Silva Fennica no. 84 article id 4643. https://doi.org/10.14214/sf.a9105

English title: Time studies on stone work done in forest drainage

Abstract

When ditches are dug in forest drainage, smaller stones are removed by hand, but the larger ones require the use of explosives or stone lifting machinery. Use of explosives have been a more common method for the larger stones. Due to development of detonation methods, it has also been used for smaller stones than earlier.

The investigation was a time study comparing five different stone lifting machines. Time needed for different stages of the work was measured. The stages lasted approximately as long for all of the machines. However, the effectivity of the machines could not be determined, because the stones removed were not similar enough. Stone lifting machine Pekka appeared slightly more effective than the other four machines. It was also easy to assemble, disassemble and move.

The article includes a summary in German.

Original keywords
ojitus; metsäojitus; työntutkimus; aikatutkimus; koneellistuminen

English keywords
forest drainage; work study; mechanization; time study; drainage of peatlands; ditches

Published in 1954

Views 2137

Available at https://doi.org/10.14214/sf.a9105 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Saarilahti M., Bakena E. et al. (1987) Studies on Tanzanian forest work. Silva Fennica vol. 21 no. 2 article id 5314
Cautón A. J., (1937) Practices of forest drainage work Silva Fennica vol. no. 39 article id 4491
Lassila I., (1930) Studies on efficiency of labour in forest work Acta Forestalia Fennica vol. 36 no. 2 article id 7260
Campu R. V., Ciubotaru A. (2017) Time consumption and productivity in manual tree.. Silva Fennica vol. 51 no. 2 article id 1657
Nurminen T., Korpunen H. et al. (2006) Time consumption analysis of the mechanized cut-.. Silva Fennica vol. 40 no. 2 article id 346
Ovaskainen H., (2005) Comparison of harvester work in forest and simul.. Silva Fennica vol. 39 no. 1 article id 398