Methods, systems, and media for measuring stress and earth pressure behind retaining walls / piles under localized overload.

The additional vertical stress behind the retaining wall/pile was calculated by using the Equation 1-3 model, and the non-ultimate active earth pressure was measured by combining the Equation 2-3 model. This solved the problem of measuring stress and earth pressure of the retaining wall/pile under local overload, and achieved higher accuracy measurement and wider engineering applicability.

CN122088091APending Publication Date: 2026-05-26ZHEJIANG UNIV CITY COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV CITY COLLEGE
Filing Date
2026-02-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies cannot effectively measure the additional vertical stress and earth pressure of retaining walls/piles under local overload, and fail to fully consider the coupling relationship between retaining walls/piles and earth pressure, especially under the influence of local overload in foundation pit engineering.

Method used

The distribution of additional vertical stress behind the retaining wall/pile is calculated using the Equation 1 model, and the non-ultimate active earth pressure is calculated using the Equation 2 and Equation 3 models. Considering the rotational displacement mode of the retaining wall/pile, different working conditions are divided, and a method for measuring the stress and earth pressure behind the retaining wall/pile under local overload is provided.

Benefits of technology

It enables accurate measurement of stress and earth pressure behind retaining walls/piles under local overload conditions, and can reasonably consider the rotation and displacement modes of retaining walls/piles, improving the accuracy of measurement and engineering applicability, and is suitable for various construction scenarios.

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Abstract

This invention discloses a method, system, and medium for measuring stress and earth pressure behind retaining walls / piles under localized overload. Addressing the shortcomings of existing technologies in simultaneously considering stress or earth pressure measurement under localized overload and rotational displacement of retaining walls / piles, this invention first solves the problem of measuring additional vertical stress behind retaining walls / piles under localized overload. The calculation model is constructed by combining theoretical derivation of the mechanical response of a semi-infinite elastic body surface subjected to a concentrated normal force with experimental test data analysis. Secondly, the invention solves the problem of measuring earth pressure behind retaining walls / piles under localized overload. The optimized scheme provides identification schemes for eight measurement conditions under five types of rotational displacement modes of retaining walls / piles, as well as non-limit active earth pressure measurement schemes under each measurement condition. The measurement method of this invention has a clear calculation model, easily obtainable parameters, and high engineering applicability. This invention also provides a force measurement system based on the measurement method and a medium for carrying the measurement method.
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