Analiza delovnega mesta sekača z opazovalno metodo OWAS : diplomsko delo - visokošolski strokovni študij - 1. stopnja

Žitko, Urban (author), Potočnik, Igor (mentor), Poje, Anton (co-mentor)

Delo sekača je poleg težavnega in zdravju škodljivega dela, ki ga povzroča izpostavljenost delavca ropotu, tresenju in izpušnim plinom, škodljivo tudi zaradi neergonomskih drž, ki se pojavljajo med delom. Z namenom analize drž med delom je bila na gozdno-gospodarskem območju Postojna izvedena raziskava z uporabo opazovalne metode OWAS (Ovako Working Posture Analysis System). Sečnja in izdelava štirih dreves iglavcev je bila posneta z videokamero, sočasno pa je bil sekaču izmerjen tudi pulz med delom. Rezultati raziskave so pokazali, da je delež telesnih drž, ki zahtevajo takojšnje ukrepanje, manjši od pričakovanega, kljub temu pa je treba čim prej ukrepati pri 8 %, nemudoma pa pri 16 % telesnih položajev. Potencialno najbolj škodljive delovne operacije so zasek, podžagovanje in obdelava korenovca. Težavnost dela ocenjena preko pulza med delom je v odvisnosti od deleža telesnih drž, ki zahtevajo ukrepanje. Rezultati raziskave kažejo na nujnost uporabe pravilne tehnike dela ter smotrnost uvajanja sodobnejših tehnologij za sečnjo lesa.

• Language: Slovenian
• Keywords: opazovalna metoda OWAS, težavnosti dela, sekač, pulz
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [U. Žitko]
• Year: 2015
• Number of pages: IX f., 78 f.
• PID: 20.500.12556/RUL-115038
• UDC: 630*30:31(043.2)=163.6
• COBISS.SI-ID: 4188070
• Publication date in RUL: 08.04.2020

Secondary language

• Language: English
• Title: Tree feller workplace analysis with OWAS observational method

Abstract

The tree feller's work is difficult and harmful due to the exposure to noise, vibrations and exhaust fumes. It is also harmful due to unergonomic working postures. For the purpose of working posture analysis there was a research carried out in Postojna forest management area with the use of observational method OWAS (Ovako Working Posture Analysis System). Felling and processing of four coniferous trees was recorded with a camera and the tree feller's heart rate was measured simultaneously. The results revealed that the amount of body postures that require immediate action is less than expected. Nevertheless it is necessary to act as soon as possible at 8 % and immediately at 16 % of working postures. Potentially the most harmful work operations are notch-cutting, back-cutting and butt trimming. Workload estimated via the heart rate correlates with the share of working postures, which require corrective action. Results of the study show urgency of using the correct working techniques and reasonableness of introducing modern logging technologies.

• Keywords: OWAS method, analysis of workloads, tree feller, heart rate