Pile and pile raft foundation design parameter calibration method and system based on pile test data inversion

By inverting test pile data, the subgrade coefficient and pile stiffness are obtained, which solves the problem of lack of basis for parameter values ​​in the existing technology, realizes the closed loop from geotechnical analysis to structural design, and ensures the scientificity and reliability of the design scheme.

CN122197152APending Publication Date: 2026-06-12CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
Filing Date
2026-03-13
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

The existing technology lacks a reasonable basis for determining the values ​​of the subgrade coefficient and pile stiffness, resulting in a large deviation between the foundation design results and the actual situation. The geotechnical analysis results cannot effectively guide the structural design, and the design scheme is difficult to balance safety and economy.

⚗Method used

By inverting test pile data, geotechnical investigation parameters are obtained, a finite element model is established, soil constitutive parameters are corrected, subgrade coefficients and pile stiffness are calculated, and the data are input into structural design software for analysis and iterative optimization until the design requirements are met.

🎯Benefits of technology

This achieves a closed loop from geotechnical analysis to structural design, ensuring the scientific validity and reliability of the design scheme, avoiding design deviations, and improving the safety and economy of foundation design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses a pile and pile raft foundation design parameter calibration method and system based on pile test data inversion, and relates to the technical field of building engineering design. The method comprises the following steps: obtaining geotechnical investigation parameters and pile test measured data; establishing a test finite element model, and correcting soil constitutive parameters by comparing simulated pile test data with measured data; establishing a prediction finite element model based on the corrected parameters, and predicting building settlement distribution; calculating foundation bed coefficient and pile stiffness according to the settlement distribution; inputting the same into a structure design software for internal force and reinforcement analysis and judging design rationality; if the requirement is not met, adjusting design parameters and iteratively optimizing until a satisfactory scheme is obtained. The present application realizes a complete closed loop from measured calibration, accurate prediction, parameter feedback to design verification and optimization, fundamentally solves the industry common problem of difficult and inaccurate value selection of foundation bed coefficient and pile stiffness, and provides scientific and reliable technical support for structure design.
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