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Offline ShannonN  
#1 Posted : 14 February 2019 22:41:16(UTC)
ShannonN

Australia   
Joined: 14/08/2016(UTC)
Posts: 492
Location: Maryborough, Qld
I thought this was interesting as its a drone (overhead) view of the loading process showing both the excavators filling the conveyor chute to the actual filling of the cars.

Would make a great inspiration for a model gravel yard

Duration: 6:19

From the comments:

Q:"Is each car getting a pre-specified amount, rather than filling the car out? Looks like each car has room for more gravel...."

A:"From my knowledge, not saying that I am 100% accurate, and experience on a county gravel road crew, gravel weighs a lot more than most other transported substances. Coal, which is what most people are used to seeing in a open hopper rail car, has a density of 43-57 lb/ft^3. Gravel on the other hand has a density of 95-105 lb/ft^3, around twice as much as coal. This means that for the same weighted amounts of coal and gravel, the coal will take up approximately twice as much space. Now like a semi on the highway, a train(car) can only weigh so much to prevent damage to the roadway, road bed, or bridges along the route. So, yes you are mostly right in saying that each car gets a 'pre-specified amount.'






thanks 1 user liked this useful post by ShannonN
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