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| Ballast Rule of Thumb https://www.rypn.org/forums/viewtopic.php?f=1&t=17636 |
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| Author: | Gerald W. Kopiasz [ Tue Jun 07, 2005 12:16 am ] |
| Post subject: | Ballast Rule of Thumb |
I'm looking for a rule of thumb for the amount of ballast required for a mile of track in terms of yards. We're talking about a light industrial spur for an example with a minimal profile.Thanks in advance!Gerald W. Kopiasz |
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| Author: | Gavin Hamilton [ Tue Jun 07, 2005 8:13 am ] |
| Post subject: | Re: Ballast Rule of Thumb |
Someone told me that the material for 1 yard of track weighs 3 tons but I think this is for a high speed mainline. However to raise a mile of track by 3 inches would take 800 tons of ballast so if you know the ballast depth required it is possible to work it out.G |
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| Author: | Alan Maples [ Tue Jun 07, 2005 8:33 pm ] |
| Post subject: | Re: Ballast Rule of Thumb |
I recommend finding a copy of "The Track Data Handbook" (Simmons-Boardman, via www.TransAlert.com). I can't lay hands on my copy right now, but I recall it has a chart for calculating ballast requirements per track foot based on how many inches of lift, etc. The book has a lot of other handy references as well.Alan Maples |
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| Author: | btwise [ Tue Jun 07, 2005 9:17 pm ] |
| Post subject: | Re: Ballast Rule of Thumb |
The chart you are referring to requires knowing the depth of the ballast below the bottom of the ties. If we choose a nominal depth of 6 inches then the quantity of ballast required per 100 feet of single tangent track with 8'-0" ties is 45 cubic yards. Granite weighs on average 2375 lbs. per cu. yd.Happy tamping!Brian Wise |
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