Method of adjustable bearing capacity for granular pile composite foundation

Considering the post construction reinforcement as the necessary components, the granular pile composite foundation-building is divided into two basic processes of the main pile composite foundation construction and the post construction reinforced. After full consideration of the capacity improvement by the post construction reinforcement, the design of the main pile can reduce the requirements of the capacity. After the main piles, according to the actual load test results, combined with the nature of shallow reinforcement materials, the proposed capacity estimation methods are employed for estimating reinforced composite foundation based on the actual project requirements, the selection of flexible reinforcement materials and reinforcement depth. The composite foundation is regulated so as to reach the load requirements of the upper buildings. This new design of granular pile composite foundation method is to save project investment and avoid the difficulty caused by small distance between the piles. It meets the bearing mechanism of the composite foundation, and its feasibility and effectiveness is validated by actual projects.