Reinforced foundation structure

A reinforced foundation structure comprises a foundation pile structure and a pile plate structure arranged on the foundation pile structure. The pile plate structure comprises a plurality of pile plates. Each pile plate comprises a pile plate body and an end hidden beam arranged at the end of the pile plate body. Every two adjacent pile plates are arranged in a spaced mode to form an inter-pile-plate expansion joint. The foundation pile structure comprises a plurality of pile plate supporting foundation pile assemblies arranged below the pile plate bodies and a plurality of pile plate gap supporting foundation pile assemblies arranged below the inter-pile-plate expansion joints and the end hidden beams. Each pile plate supporting foundation pile assembly comprises a plurality of foundation piles and a plurality of pile caps correspondingly arranged at the top ends of the foundation piles. Each pile plate gap supporting foundation pile assembly comprises a cap beam and a plurality of foundation piles arranged below the cap beam, wherein the cap beam is arranged below the corresponding inter-pile-plate expansion joint and the corresponding end hidden beam. The foundation piles are rock socketed piles. The bottom ends of the foundation piles enter a strong weathered rock stratum or an intermediary weathered rock stratum. The depth of the foundation structure is increased, the strength of the foundation structure is improved, and the foundation structure is prevented from subsiding.