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Mologni, Omar (2019) Cable tensile force monitoring in steep slope forest operations. [Ph.D. thesis]

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Abstract (italian or english)

The interest in active sustainable management of mountain forests is increasing around the world. Great effort, in particular, is focusing on the identification of efficient, safe, and sustainable steep slope harvesting solutions adapted to different environmental conditions. The main attention is moving toward winch-assist harvesting systems on trafficable terrain and European designed standing skyline mobile tower yarders on non-trafficable terrain. These cable-supported harvesting solutions have similar safety issues related to the use of tensioned wire ropes and the use of natural anchors. This research focused on the analysis of cable tensile force while operating with these harvesting solutions in ordinary harvesting sites and operational conditions.
First, a state-of-the-art about the steep slope cable-supported harvesting solutions and their main safety issues was completed. A particular focus was dedicated to the significant works on cable tensile force monitoring. Following, field studies were successfully carried out to monitor the cable tensile forces on ordinary logging operations. The survey interested eleven mobile tower yarders, observed on twelve different cable lines in the Italian Alps, and three large integrated-winch forwarders, observed on eight trails in the interior of British Columbia (Canada). A similar approach, based on the integration of tensile force monitoring, video recording of the operations, ground profile analysis, and load measurement/estimation, was applied to both the cable-supported systems. The case studies, the methodological approach used for the data collection and analysis, and the results of the monitoring are presented and reported in detail.

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EPrint type:Ph.D. thesis
Tutor:Grigolato, Stefano
Supervisor:Cavalli, Raffaele
Ph.D. course:Ciclo 31 > Corsi 31 > LAND, ENVIRONMENT, RESOURCES, HEALTH (LERH)
Data di deposito della tesi:31 January 2019
Anno di Pubblicazione:25 January 2019
Key Words:steep slope, cable yarding, winch-assist, tension, tensile force monitoring, safety, forest operations, logging
Settori scientifico-disciplinari MIUR:Area 07 - Scienze agrarie e veterinarie > AGR/09 Meccanica agraria
Struttura di riferimento:Dipartimenti > Dipartimento Territorio e Sistemi Agro-Forestali
Codice ID:11737
Depositato il:08 Nov 2019 09:51
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