Subgrade earthwork and rockwork shall include: fillsubgrade earthwork, cut subgrade, special subgrade treatment and other relevant activities.
路基土石方工程包括：填方路基、挖方路基和特殊路基处理及其有关的作业。
2
A new cut-fill method is adopted in the design of access road of Miaojiaba hydropower project by directly backfilling on the subgrade alluvium, and has probed a set of effective design method.