Summary
Horizontal Directional Drilling (HDD) is commonly used for installing power cables where conventional trenching is impossible or impractical. However, the increased burial depth and complex geometry of HDD installations significantly affect thermal performance, making accurate modelling essential for safe operation. This paper compares three modelling approaches for current rating calculations in HDD scenarios: a standard 2D cross-section of the deepest part of the HDD, a full 3D modelling of the actual HDD profile, and a simplified 3D approach using the elevated soil profile method (ESPM), which is proposed in this paper.
Read more Read lessResults show that the ESPM yields slightly more conservative results than when assuming the real HDD geometry. This simplified approach is useful from a perspective of running thermal calculations that are more accurate than 2D, and less time-consuming than real geometry.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B1_11698_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Sweden |
| Study committees | |
| File size | 611 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
RATKOWSKI Filip - NKT; RYDÉN Vilhelm - NKT
