一种粗粒土单粒破碎耗能密度的尺寸效应确定方法
Through single-particle crushing experiments and mathematical statistics, the size effect of energy consumption density in single-particle crushing of coarse-grained soil was determined, solving the problem of difficulty in expressing the energy consumption of irregular particle crushing and establishing a more robust constitutive model for coarse-grained soil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2023-11-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to effectively determine the breakage energy density of individual particles in coarse-grained soils. In particular, the difficulty in measuring internal defects in irregular particles and the large dispersion of breakage energy make it challenging to express breakage energy, thus affecting the establishment of constitutive models for coarse-grained soils.
By conducting single-particle crushing experiments with different particle sizes, and combining mathematical statistics methods, outliers were eliminated using the Grubbs criterion. The data were fitted using Weibull, Lognormal, and Logistic distributions. An appropriate functional relationship was selected to describe the size effect of crushing energy consumption density, and an empirical model of the size effect of single-particle crushing energy consumption density was established.
The energy consumption density of single-particle crushing of coarse-grained soil was directly determined, providing a more solid theoretical basis, filling the gap in the statistical analysis of irregular particle crushing test results, and promoting the establishment of a constitutive model for coarse-grained soil.
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Figure CN117540615B_ABST