Maximum Excavation Slope on Various Grounds
| Kind of Soil | Ratio of Height to Width |
|---|---|
| Sandy soil | 1:1 |
| Clayey sandy soil | 1:0.67 |
| Clayey soil | 1:0.50 |
| Clay | 1:0.33 |
| Soil with gravel | 1:0.67 |
| Dry loess | 1:0.25 |
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| Kind of Soil | Ratio of Height to Width |
|---|---|
| Sandy soil | 1:1 |
| Clayey sandy soil | 1:0.67 |
| Clayey soil | 1:0.50 |
| Clay | 1:0.33 |
| Soil with gravel | 1:0.67 |
| Dry loess | 1:0.25 |