Section size of concrete surface layer of subgrade bed for ballastless tracks in Japan
| Surface structural layer of subgrade bed | Track category | Load-bearing width of surface layer of subgrade bed/m | Standard thickness/m |
|---|---|---|---|
| Concrete slab | Standard gauge | 3.20 | 0.30 |
| Graded crushed stone layer | Standard gauge | 0.15 |
| Surface structural layer of subgrade bed | Track category | Load-bearing width of surface layer of subgrade bed/m | Standard thickness/m |
|---|---|---|---|
| Concrete slab | Standard gauge | 3.20 | 0.30 |
| Graded crushed stone layer | Standard gauge | 0.15 |
Source(s): Authors’ own work
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