Two or more heavy loads traversing ice need to be kept a distance apart. The distance between loads varies with the ice quality, weight and weight distribution.
NOTE: The following table assumes that loads are of equal weight and that the ice is good with a thickness appropriate to the load.
Weight in Tons |
Minimum Distance Between Loads in Feet |
0.1 |
17 |
1 |
34 |
2 |
48 |
3 |
58 |
4 |
67 |
5 |
75 |
10 |
106 |
20 |
149 |
30 |
183 |
40 |
211 |
People walking on ice should keep at least 10 feet apart.
distance in feet between loads =
= 100 * (minimum thickness of ice for load) / 12 =
= 100 * 4 * SQRT(tonnage) / 12 =
= 33.33 * SQRT(tonnage)
The data in the table can be modeled in a number of ways in Minitab.
distance in feet =
= (0.3671 * ((SQRT(tonnage))^2)) + (30.37 * (SQRT(tonnage)) + 5.139
distance in feet =
= (14.22 * ((LOG10(tonnage))^3)) + (26.14 * ((LOG10(tonnage))^2)) + (30.51 * (LOG10(tonnage))) + 35.43
Limitations:
• These distances do not apply if traveling near a large opening in the ice.
• A person traversing ice should always be observing the ice for early signs of failure.
Specialty: Emergency Medicine, Critical Care
ICD-10: ,