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Nucleus  2011 

EXPLORA O FLORESTAL SEMIMECANIZADA E AS IMPLICA ES NA SAúDE E NA SEGURAN A DO TRABALHADOR

Keywords: IBUTG , NR-15 , Forest exploration. - IBUTG. NR-15. Explora o florestal.

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Abstract:

The Wet Bulb Index - Globe Thermometer, IBUTG, has an important role in planning theactivities that happen on the presence of heat load. The legislation provides, based on the IBUTG, two situationsto work intermittently, with rest on the spot and elsewhere. The aim of this study was to evaluate the forestrycomparing the productivity of timber harvested between two groups of workers with and without rest. The studyarea is located beside the highway BR 060, at km 397, Rio Verde/Goiás. The measured plot was planted withEucalyptus urophylla S. T. Blake, with 24.98 hectares. The index was calculated using the formula for outdoorswith solar load. Was monitored throughout the day in the production volume of wood cut (st), according to fivetimes pre-established (09:00, 11:00, 14:00, 16:00 and 18:00). This was a randomized block design (DBC) in afactorial 2 x 5, and T test at 1% significance. The average IBUTG was found to be 25.8 and the system adoptedwas 45 minutes work and 15 minutes of rest. There were no significant differences at the 99% level ofprobability between the variable analyzed for the groups with and without rest. However, there was significantdifference for the times evaluated. It is evident that regardless of IBUTG calculated, the rest could be offered bythe company at no cost to employees, since no statistically significant difference between the schemes of workadopted.O índice de Bulbo úmido - Term metro de Globo, IBUTG, tem papel importante noplanejamento das atividades que acontecem sobre a presen a de carga térmica. A legisla o prevê, com base noIBUTG,duas situa es para trabalho intermitente,com descanso no próprio local e em outro local.O objetivodeste trabalho foi avaliar a explora o florestal comparando a produtividade de madeira cortada entre doisgrupos de trabalhadores, com e sem descanso. A área em estudo está localizada às margens da rodovia BR 060,na altura do km 397, em Rio Verde/Goiás. O talh o avaliado foi plantado com Eucalyptus urophylla S. T. Blake,em 24,98 hectares. O índice foi calculado conforme a fórmula para ambientes externos com carga solar. Paracomparar resultados foi monitorado durante todo o dia a produ o em volume de madeira cortada (st),obedecendo cinco horários pré-estabelecidos (09:00, 11:00, 14:00, 16:00 e 18:00 h).Realizou-se umdelineamento em blocos casualizados (DBC), em esquema fatorial 2 x 5, e teste T ao nível de 99% deprobabilidade. O IBUTG médio encontrado foi de 25,8 e o regime adotado foi de 45 minutos de trabalho e 15minutos de descanso. N o houve diferen as significativas, ao nível de 1% de prob

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