|
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.
|
