Method for determining non-limiting active earth pressure of complex terrain retaining wall

By spatial discretization and differential geometric analysis of complex terrain, a curvature spectrum is constructed and the soil arching effect is analyzed, solving the problem of accurate calculation of earth pressure distribution under complex terrain conditions. This enables the generation of high-precision earth pressure distribution maps, improving the safety and economy of engineering design.

CN121189049BActive Publication Date: 2026-02-27XICHANG COLLEGE
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Patent Information

Application Number
CN202511742751.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-02-27
Estimated Expiration
2045-11-25

AI Technical Summary

Technical Problem

Existing technologies cannot efficiently and accurately calculate the distribution of non-limit active earth pressure under complex terrain conditions, leading to safety hazards or waste of resources in engineering design. Simplified calculation methods lack accuracy, while high-precision analysis methods are too expensive for small and medium-sized projects.

Method used

By acquiring and spatially discretizing the original survey data, a benchmark pressure grid is constructed, the topographic curvature spectrum is analyzed, the soil arching effect is resolved, a curvature pressure mapping function is constructed, stress redistribution weight transformation is performed, and a corrected earth pressure distribution map is generated.

Benefits of technology

This paper presents a high-precision and efficient method for determining earth pressure on retaining walls, which can profoundly reflect the stress redistribution law in complex terrain and improve the safety and economy of the design.

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Abstract

The present application relates to the field of civil engineering and computer-aided design technology, and particularly relates to a method for determining non-limiting active earth pressure of a retaining wall in complex terrain. The method comprises the following steps: obtaining and spatially discretizing original survey data to form a set of parameterized grid points; constructing a reference pressure grid using the set of parameterized grid points; extracting elevation information of each grid element in the reference pressure grid, locally fitting the elevation information to a surface, and calculating the principal curvatures of the terrain surface to form a terrain curvature spectrum; analyzing the curvature distribution of the curvature characteristic region in the terrain curvature spectrum to obtain statistical characteristics of the curvature distribution; and analyzing the soil arching effect according to the statistical characteristics of the curvature distribution to obtain soil arching curvature influence law data. The present application converts complex three-dimensional boundary conditions that are difficult to handle into an accurately quantifiable terrain curvature spectrum, thereby improving the safety and economy of retaining wall design under complex terrain conditions.
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