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soil compaction through vibration

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Kivi

Mining
Joined
May 29, 2005
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40
Location
CA
When vibrating soil for compaction, what are the practical limits for influence?

 
The limits depend on the type of soil, water conditions, and the size of the vibrator(roller or otherwise). For expample if you are using a small walk behind roller compacting a damp sand (i.e. near optimum) then you may be able to compact up to 12 inches, although 6 to 9 inches is more likely. In the same conditions, a plate compactor might get 6 inches with 4 to 8 passes.

If you could be more specific, we might be able to help you better. But in general terms, vibratory compaction equipment will penetrate less than 1 foot unless very large equipement is used in which case 2 to 3 feet might be possible.

 
thanks,
I just wanted to know general info.

 
In general,
Soil dumped out of a truck is about 88% SPDD compaction. With about 3 passes of compaction, relative to type and depth, you will get up to 92% SPDD, 5 passes 95% SPDD, 8 passes 98-100% SPDD.
At optimum moisture, the lower the density the less compactive effort needed.
That has been my experience in the field.
 
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