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Slip, Trip and Fall Injuries in Construction and Transportation, September 30, 2002.

PB2003102820

Publication Date	2002
Personal Author	Peterson, M. L.
Page Count	30
Abstract	The initially proposed work was to evaluate the effects of various soil amendments on the occurrence of slip trip and fall injuries in the construction and transportation industries. It was initially believed that the insight required for the work could be obtained from simple modulus measurements in the vertical and horizontal direction. To this end, initial modeling and testing was performed. It was then determined that the vertical modulus while coupled to the horizontal shear strength measure, needed to be independently evaluated. Vertical modulus was also found to be a secondary factor in the occurrence of slip as noted in the relevant literature. Therefore the emphasis was shifted to developing methods to measure the required shear failure of soil and boot interface. This effort has focused on the development of test protocol for the measurement of kinetic coefficient of friction for the heel slide gait pattern and the sole slide gait pattern. The two failure modes, slipping and shear failures of the soil are considered using the approach taken in the work. The apparatus while promising does not at this point produce sufficiently repeatable measurements on soil that soil amendments can be evaluated.
Keywords	Construction industry Transportation industry Injuries Soil amendments Footwear Injury prevention Soil mechanics Friction Slip trip fall injuries Soil and boot interface
Source Agency	National Institute for Occupational Safety and Health
Corporate Authors	Maine Univ. at Orono. Mechanical Engineering Dept.; National Inst. for Occupational Safety and Health, Washington, DC.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200312

Slip, Trip and Fall Injuries in Construction and Transportation, September 30, 2002.

Slip, Trip and Fall Injuries in Construction and Transportation, September 30, 2002.
PB2003102820

Publication Date	2002
Personal Author	Peterson, M. L.
Page Count	30
Abstract	The initially proposed work was to evaluate the effects of various soil amendments on the occurrence of slip trip and fall injuries in the construction and transportation industries. It was initially believed that the insight required for the work could be obtained from simple modulus measurements in the vertical and horizontal direction. To this end, initial modeling and testing was performed. It was then determined that the vertical modulus while coupled to the horizontal shear strength measure, needed to be independently evaluated. Vertical modulus was also found to be a secondary factor in the occurrence of slip as noted in the relevant literature. Therefore the emphasis was shifted to developing methods to measure the required shear failure of soil and boot interface. This effort has focused on the development of test protocol for the measurement of kinetic coefficient of friction for the heel slide gait pattern and the sole slide gait pattern. The two failure modes, slipping and shear failures of the soil are considered using the approach taken in the work. The apparatus while promising does not at this point produce sufficiently repeatable measurements on soil that soil amendments can be evaluated.
Keywords	Construction industry Transportation industry Injuries Soil amendments Footwear Injury prevention Soil mechanics Friction Slip trip fall injuries Soil and boot interface
Source Agency	National Institute for Occupational Safety and Health
Corporate Authors	Maine Univ. at Orono. Mechanical Engineering Dept.; National Inst. for Occupational Safety and Health, Washington, DC.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200312