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路基是按照路线位置和一定的技术要求修筑的带状构造物,它承受由路面传递下来的行车荷载,并承受水、冰冻等自然因素的作用。路基是构成高速公路的一个重要组成部分,是高速公路主体工程和路面的基础,它贯穿高速公路全线,与桥梁、隧道相连,并且它与路面共同承受行车荷载的作用。其施工质量的好坏直接影响高速公路的使用寿命。实践证明。没有坚固、稳定的路基。就没有稳固的路面。以下将重点谈谈高速公路路基的施工技术。
The roadbed is a belt-shaped structure built according to the route location and certain technical requirements. It supports the driving load transmitted from the road and withstands the natural factors such as water and freezing. Subgrade is an important part of the expressway. It is the basis of the main highway engineering and pavement. It runs through the entire expressway and is connected with the bridge and tunnel, and it can bear the driving load together with the road surface. The construction quality of a direct impact on the service life of the highway. Practice proved. No solid, stable roadbed. There is no solid road. The following will focus on highway construction technology.