How the ground bearing pressure for heavy haulage can be calculated?

Answer 1

The "quick and dirty" approach I use when designing tire supports - such as paving or steel grating - is to use the same pressure as the pressure rating on the vehicle tires.

For instance, lets assume the axle load of a vehicle is, say 10,000 pounds, and the axle has single tires on each end, rated at 25 psi.

Then, the pressure on the gound under each tire is the same as the tire pressure, or 25 psi.

And since each tire is carrying 5,000 pound (Axle Load/Number of tires attached to the axle), the contact area is:

5,000 lbs/ 25 psi = 200 square inches.

The square root of 200 = 14.14", so you can assume a loaded area equal to a square 14.14" x 14.14".

Hope this helps.

Answer 2

Bearing pressure is calculated by doing a soils analysis and site investigation. A geotechnical engineer will give recommendations on what values to use.

Answer 3

You have been given the answer for the transportation end of it. If you are looking for the answer from transporation end-point to construction site then you must consult a civil or construction engineer. Soil resistance varies depending upon the type of soil. The installation bed must be of sound and secure base with adequate amont of cement concrete mix, depth, reinforcement, vibration resistance etc. It's matter of unit weight per square inch or per square centimetre.

http://www.terram.com/content.php?nID=101;langID=1
http://www.union.edu/PUBLIC/CERDEPT/FACULTY/GHALY/FOUNDATION/GBCSQUS.htm

Answer 4

Most roads/ bridges/building floors have the weight limits listed on them, when you buy a car/trucks it gives you its gross(max) and net weight.

You just do not want to exceed these limits in any way.

Answer 5

Civil engineering question.

Answer 6

ration of Total weight to the contact area