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Evaluation of different modes for yarding windthrown timber with a double-hitch carriage
ID
Spinelli, Raffaele
(
Author
),
ID
Stampfer, Karl
(
Author
),
ID
Magagnotti, Natascia
(
Author
),
ID
Cosola, Giulio
(
Author
),
ID
De Francesco, Fabio
(
Author
),
ID
Erber, Gernot
(
Author
),
ID
Mihelič, Matevž
(
Author
)
URL - Source URL, Visit
https://crojfe.com/archive/upcoming-issue/evaluation-of-different-modes-for-yarding-windthrown-timber-with-a-double-hitch-carriage/
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Abstract
Yarding whole trees is the most efficient way of extracting timber in steep terrain and allows reaping the combined benefits of mechanization and biomass recovery. In downhill yarding, however, whole-tree extraction is associated with a greater risk of loosening rocks or debris by the incoming loads as they bounce around along the extraction corridor. That may also cause damage to the cables and anchors by corresponding shock loads, ultimately endangering the yarder and its crew. To avoid these risks, »double-hitch carriages« can be employed. They combine a conventional motorized dropline carriage with a secondary carriage (»trailer«), equipped with a further, independent dropline winch. Thus, loads can be attached at two points and transported fully suspended above the ground in a horizontal position. Operation of these carriages may not be limited to the »horizontal« mode: the main carriage could also be operated without trailer (»single« mode), or separate loads may be attached to the two droplines (»double« mode), but their impact on the efficiency and economy of yarding operations is yet unknown. Therefore, the present study investigated how these modes affect the productivity and cost of downhill whole tree yarding. To this end, a classic time and motion study was conducted during a salvage logging operation in Northern Italy under a strictly controlled experimental design.
Language:
English
Keywords:
harvesting
,
logging
,
steep terrain
,
carriage
,
horizontal yarding
,
work safety
,
efficiency
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Publication date:
01.01.2023
Year:
2023
Number of pages:
Str. 245-257
Numbering:
Vol. 44, iss. 2
PID:
20.500.12556/RUL-152283
UDC:
630*3
ISSN on article:
1848-9672
DOI:
10.5552/crojfe.2023.2051
COBISS.SI-ID:
154775555
Publication date in RUL:
16.11.2023
Views:
794
Downloads:
41
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Record is a part of a journal
Title:
Croatian journal of forest engineering
Shortened title:
Croat. j. for. eng.
Publisher:
Forestry Faculty of Zagreb University, Croatian Forests, Croatian Chamber of Forestry and Wood Technology Engineers, FORMEC
ISSN:
1848-9672
COBISS.SI-ID:
55971331
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
sečnja
,
strmi tereni
,
varstvo pri delu
,
učinkovitost
Projects
Funder:
EC - European Commission
Funding programme:
European Commission
Project number:
720757
Name:
Techniques and Technologies for Effective Wood Procurement
Acronym:
TECH4EFFECT
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