Explosive Compaction
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 Expected Volume Change from Explosive Compaction:

 

Soil Type

Initial Relative Density

Estimated Volume Change (%)

Sandy Gravel (GW)

0.3

7-8

Ditto

0.6

1.5-2.5

Poorly Graded Sandy Gravel (GP)

0.3

9-10

ditto

0.6

2-3

Well graded sand (SW)

0.3

10-12

ditto

0.6

3-4

Poorly graded sand (SP)

0.3

8-9

ditto

0.6

2-3

Silty sand (SM)

0.3

10-11

ditto

0.6

3-4

Non-plastic sand-silt mixtures

0.3

10-12

ditto

0.6

3-4

 

Plot of build-up of pore water pressure versus time during sequential

blasting recorded at a minimum distance of 13m from the blast zone

using blast-resistant pore pressure transducers

and high speed data acquisition systems.

 

 

 

 

 

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