路基工程是高速公路工程的重点基础。在山岭重丘地区修建高速公路,处于地壳表层的挖方路堑边坡施工中受到自然和人为因素包括水文、水文地质、地面水、气候、地貌、设计与施工等的影响,比路堤边坡更容易发生变形破坏。路基出现的病害大多发生在路堑挖方地段上,诸如滑坡、崩坍、落石、路基翻浆等。施工人员应从设计审查、施工选择、现场地质水文调查多方面把关,切实处理好路基施工。 Subgrade construction is the key foundation of expressway project. Construction of expressways in mountainous heavy hilly areas is affected by natural and man-made factors such as hydrology, hydrogeology, surface water, climate, geomorphology, design and construction in the excavation of cut slopes on the crust surface, and is easier than embankment slopes Deformation and destruction occurred. Most of the roadbed diseases occurred in the excavation section, such as landslides, collapse, rockfall, subgrade and so on. Construction workers should check and design in various aspects such as design review, construction choice and on-site geological and hydrological survey to effectively handle roadbed construction.