Characteristics of the Cross-cutting Operation on Landing Area

Abstract

Cross-cutting wood on the landing area aims to transform wood pieces harvested into lengths of assortments that will be delivered to customers. Work conditions in the landing area, other than in the cutting area, require a separate analysis of cross-cutting operation in the specific conditions from the landing area. Research carried out in the mountains area (Vâlsan Valley, Făgăraş Mountains) on a total of 351 pieces, with a volume of 361,581 m3 in a total working time of 47,880 s and a cut surface of 260,700 cm2, showed that there can establish significant correlations between the number of sections, cut surface, work productivity and the diameter of breast height of the tree marked, and between the average number of sections, cut surface, and the tree volume. For specific work conditions on the landing area, the wood cross-cutting with a mechanical chain saw Husqvarna 365, revealed the following values: the average number of cross/cutting - 1.29 cross-cuttings⋅m-3; operative time work - 64% from total work time; specific cut surface - 721 cm2⋅m-3; cutting productivity - 73.33 cm2⋅s-1