为保证路基的稳定，防止路基冲刷和淘空，作者提出了四种施工方法以供参考。
To assure roadbed stabilization and prevent roadbed being washed out, author puts forward 4 methods to be referenced.
沿河公路路基冲刷是公路水毁中的一个主要类型，而最大冲刷深度将直接影响沿河路基的安全。
The scour of subgrade along river side is a main type of the highway washout of flood, the maximum scour depth would effect the subgrade safety directly.
路基边坡冲刷是指降雨形成的坡面水流破坏路基边坡坡面，并冲走坡面表层土体的现象。
Subgrade slope surface erosion is defined as a phenomenon which rain runoff destroys subgrade slope surface, and washes away soil on the surface of slope.
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