Učinkovitost večbobenskega žičnega žerjava Moxy na kratkih razdaljah - primer Selbu

Košir, Boštjan (author)

Poleti l. 1987 smo proučevali spravilo lesa z večbobenskim žičnim žerjavom Moxy v Južnem Trondelagu, pokrajini Selbu na Norveškem. Ugotavljali smo učinkovitost žerjava Moxy pri spravilu celih dreves smreke na kratkih razdaljah. Površina goloseka je merila 1.03 ha, povprečna lesna zaloga 205 m$^3$/ha. Meritve smo opravili na petih različnih trasah in ugotovili vpliv naklona terena, spravilnih razdalj in velikosti bremena na dnevne učinke. Med različni­mi preizkušanimi tipi regresijskih krivulj je izbrana eksponentna krivulja najbolje pojasnila proučevane odvisnosti. Rezultati so pokazali, da je žerjav Moxy pri spravilu celih dreves navzdol na kratkih razdaljah in na težkih terenih zelo učinkovit stroj.

• Language: Slovenian
• Keywords: žični žerjavi, spravilo lesa, Moxy, Norveška
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Year: 1989
• Number of pages: Str. 5-24
• Numbering: Št. 32
• PID: 20.500.12556/RUL-69722
• UDC: 630*37
• ISSN on article: 0351-3114
• COBISS.SI-ID: 6207234
• Publication date in RUL: 10.07.2015

Record is a part of a journal

• Title: Zbornik gozdarstva in lesarstva. forest and wood science & technology
• Shortened title: Zb. gozd. lesar.
• Publisher: Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
• ISSN: 0351-3114
• COBISS.SI-ID: 6206978

Secondary language

• Language: English
• Title: Production of the Moxy cable crane operating at short distance - Selbu case study

Abstract

In the summer of 1987 we studied the operations of the Moxy cable crane in South Trondelag county, Selbu district, Norway. Production rates far Moxy cable crane were established far short distance skidding of whole spruce trees. Clearcut area had 1. 03 ha with the average standing volume of 205 m$^3$/ha. We studied performance in 5 different settings. The stress was given on evaluation of the slope, distances and load size influence on daily production rates. Exponential type of regression analysis showed among some other tested the best significance. The results show that the Moxy cable crane is a very efficient machine for skidding whole trees downhill at short distances and in difficult terrain.

• Keywords: cable crane, skidding, Moxy, Norway