Research Article
Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening
Table 1
Subgrade compaction degree.
| Fill dig type | Depth below pavement surface (cm) | Compactness (%) |
| Fill with the subgrade | Road bed | 0∼30 | ≥97 | Lower bed | 30∼120 | ≥97 | Upper embankment | 120∼190 | ≥95 | Lower embankment | Below 190 | ≥94 |
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