Experimental investigation on human hand arm vibration in a jack hammer operator – sand floor

Abstract

Labour forces are subjected to more intensive work conditions in India. It is necessary to determine the safe levels of harshness a human body should be exposed to. This paper focuses on human hand-arm vibration. An experimental investigation is made on Sand hammering workers by measuring the vibration transmission into their body. The measured values are compared with ISO 5349-1:2001 standards. The vibration levels are considerably high and risky. This encourages the use of alternative design for jackhammers.