Physics · Highway Engineering
For roads, the permeability criteria for subsurface drainage filter design shall be:
- 1D 15 of filter D 10 of foundation > 5
- 2D 15 of filter D 10 of foundation < 5
- 3D 15 of filter D 15 of foundation < 5
- 4D 15 of filter D 15 of foundation > 5✓
Correct answer
D 15 of filter D 15 of foundation > 5
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