Table 1 Cut slopes for road excavation in Nepal Road Standard (DoR 2014)
From: Sustainable rural infrastructure: guidelines for roadside slope excavation
Soil type | Cut slope (V:H) |
|---|---|
Ordinary soil | 1:2 to 1:1 |
Disintegrated rock or conglomerate | 1:1/2 to 1:1/4 |
Soft rock, shale | 1:1/4 to 1:1/8 |
Medium rock | 1:1/12 to 1:1/16 |
Hard rock | Almost vertical |