Roadbed pile foundation structure for ancient landslide protection and implementation method

The invention discloses a roadbed pile foundation structure for ancient landslide protection and an implementation method, the roadbed pile foundation structure comprises a base arranged on a roadbed slope of an ancient landslide area, and a limiting groove matched with the base is formed in the roadbed slope; the embedded part is mounted in the limiting groove and used for fixing the base; the fixing part is matched with the base and is used for assisting in fixing the base; and the supporting and blocking assembly is installed between every two adjacent bases and used for protecting the roadbed slope. Through the combined action of the supporting and retaining assembly, the embedded part and the fixing part, ancient landslide reviving can be hindered, ancient landslide reviving is avoided to a certain degree, the problem that great potential safety hazards are caused by ancient landslide reviving is solved, in expressway construction, a method which is often adopted for ancient landslide road sections is cu