Dumper

Dumper

Transportation - haulage and hoisting

Published in Ratan Raj Tatiya, Surface and Underground Excavations, 2013

Use of these units (fig. 7.4(a)) began in the early 1970s in underground mines. Both two-wheel drives and four-wheel drive trucks are in use. A two-wheel drive truck finds its application in level to 12% up gradient mine roadways. The road should be with hard surface. It should not be very slippery and soft. Four-wheel drive trucks can be used for rough, slippery and even at the steeper gradients than 12%. Trucks can be classified into three types: Tip dumpers, Telescopic dumpers and Push-plate dumpers.

Role of whole-body vibration exposure and posture of dumper operators in musculoskeletal disorders: a case study in metalliferous mines

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Journal Information

Published in International Journal of Occupational Safety and Ergonomics, 2022

R. Upadhyay, V. Jaiswal, A. Bhattacherjee, A. K. Patra

A few studies have evaluated MSD problems due to the combined exposure to awkward posture and WBV under real working conditions [31–33]. Dumpers used in surface mines have more capacity compared to the trucks used in other industries. The cyclical nature of the dumper operation (which includes loaded and empty travel, loading and unloading operations) is unique to dumper operations in mines. Further, the dumpers are required to negotiate a high gradient and sharp turn within a short distance. Therefore, the changes in posture of the dumper operators are significant in a short time span. This is a big difference when dumper operation in surface mines is compared to operation in any other industry/operation. However, there is hardly any literature available that evaluates the influence of awkward posture and WBV exposure on MSDs of the dumper operators in surface mines [34].

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Transportation - haulage and hoisting

Role of whole-body vibration exposure and posture of dumper operators in musculoskeletal disorders: a case study in metalliferous mines