Footprint area of haul truck 797B

[gusongjun]

Hi,

Does any body know the footprint area of haul truck 797B (400t)? I tried to search on line, but nothing is found.

Thanks for your help!

 

[cvg]

http://www.cat.com/cda/layout?f=227126

 

[gusongjun]

cvg, thanks for your reply.

I check the link that you gave. Under 'dimensions', I can't find the footprint areas of front tires or rear tires.

 

[BigH]

Would depend on the type of tyre used and the pressure it is pumped up for. Why not contact Caterpillar directly and ask them - they'll know.

 

[cvg]

If you know the tire air pressure, operating weight and axle weight distribution, you can calculate the "footprint"

 

[eea]

Might check this previous post:

http://www.eng-tips.com/viewthread.cfm?qid=15003&page=4

I also came across this research paper:

http://www.its.berkeley.edu/pavementresearch/PDF/Contact Stresses of Pneum.PDF

You should show standard tires on the 797B to be 59/80R63. See if you can locate a copy of the CAT Performance Handbook. In addition to the specific section on the machine, there is a separate tire section that may be of help. On second look, no luck there. You are to consult Michelin or Bridgestone directly for 797 options.

 

[chicopee]

What is the purpose of knowing the footprint? Is it equipemnt load on a concrete Pad to determine its thickness?