바닥 거칠기 및 미끄럼판 재질에 따른 미끄러짐 특성 연구

Experimental Study on Slip Characteristics of Floor Surface Roughness and Slider Materials

  • 김정수 (한국산업안전보건공단 산업안전보건연구원) ;
  • 박재석 (한국산업안전보건공단 산업안전보건연구원)
  • Kim, Jung-Soo (Occupational Safety and Health Research Institute, KOSHA) ;
  • Park, Jea-Suk (Occupational Safety and Health Research Institute, KOSHA)
  • 투고 : 2010.11.12
  • 심사 : 2010.12.14
  • 발행 : 2010.12.31

초록

This paper presented an experimental study of slip resistance characteristics of shoes and floor surface contact with special focus on the effect of surface roughness, outsole material and mechanical abrasion. The factors that affected the results of slip resistances were investigated for four kinds of rubbers and five kinds of floor samples using the VIT(English XL) tribometer. The slip resistance was observed to increase gradually with increasing roughness for five kinds of floor roughness. In the higher surface roughness (larger than $11.5{\mu}m$), the slip resistance increased more rapidly and exceeded safety criteria at $22.60{\mu}m$. The slip resistance was observed to decrease with increasing hardness of outsole, except for butylenes rubber, which seemed to show the material property. The slip resistance decreased with number of trials. In the first several times(5 or 6 trial), the slip resistance decreased more rapidly, whereafter it approached gradually constant value. The slip resistance of surfaces has generally been shown to increase with floor surface roughness and to decrease with hardness of outsole and number of trials under the wet condition.

키워드

참고문헌

  1. R. Gronqvist, M. Hirvonen, and A. Tohv, "Evaluation of three portable floor slipperiness testers", Int. J. Industrial Ergonomics, Vol. 25, pp. 85-95, 1999.
  2. Personal protective equipment-Footwear-Test method for slip resistance, BS EN 13287:2004
  3. M. Marpet, "Improved characterization of tribometric test results", Safety Science, Vol. 40, pp. 705-714, 2002. https://doi.org/10.1016/S0925-7535(01)00068-6
  4. A. Fendley, M. I. Marpet, H. Medoff, and D. Schutter, "Repeatability and reproducibility in walkway-safety tribometry: abrasive-grit size in test-foot preparation", Journal of Testing and Evaluation, Vol. 27, pp. 76-82, 1999. https://doi.org/10.1520/JTE12044J
  5. T. D. Proctor, and V. Coleman, "Slipping, tripping and falling accidents in great britain- present and future", J. Occupational Accidents, Vol. 9, pp. 269-285, 1988. https://doi.org/10.1016/0376-6349(88)90018-1
  6. G. W. Harris, and S. R. Shaw, "Slip resistance of floors: user's opinions, tortus instrument readings and roughness measurement", J. Occupational Accidents, Vol. 9, pp. 287-298, 1988. https://doi.org/10.1016/0376-6349(88)90019-3
  7. W. R. Chang, "The effect of surface roughness and contaminant on the dynamic friction of porcelain tile", Applied Ergonomics, Vol. 32, pp. 173-184, 2001. https://doi.org/10.1016/S0003-6870(00)00054-5
  8. D. P. Manning, and C. Jones, "The effect of roughness, floor polish, water, oil and ice on underfoot friction: current safety footwear solings are less slip resistant than microcellular polyurethane", Applied Ergonomics, Vol. 32, pp. 185-196, 2001. https://doi.org/10.1016/S0003-6870(00)00055-7
  9. The assessment of pedestrian slip risk, The HSE approach, 2002.
  10. R. Gronqvist, et. al., "Slip resistance versus surface roughness of deck and other underfoot surfaces in ships", Int. J. Occupational Accidents, Amsterdam, Vol. 13, pp. 291-302, 1990. https://doi.org/10.1016/0376-6349(90)90035-T