PVD design in the illustrative design example
| Parameter | Symbol | Value |
|---|---|---|
| Influence radius of drains* | re | 0·37 m |
| Drain radius | rw | 0·033 m |
| Smear zone radius | rs = 2rw | 0·066 m |
| Conductivity ratio of smeared zone | kh/k′h | 4 |
| Horizontal/vertical conductivity ratio | kh/kv | 2·5 |
| Longest drain path† | hdr | 7·75 m |
| Parameter | Symbol | Value |
|---|---|---|
| Influence radius of drains | 0·37 m | |
| Drain radius | 0·033 m | |
| Smear zone radius | 0·066 m | |
| Conductivity ratio of smeared zone | 4 | |
| Horizontal/vertical conductivity ratio | 2·5 | |
| Longest drain path | 7·75 m |
Equivalent to a triangular pattern with 0·7 m centre-to-centre drain spacing.
Two-way drainage assumed.
Sharing content requires targeting cookies to be enabled. Please update your cookie preferences to use this feature.