A method for identifying the stone content distribution of a soil-stone mixture sample

By cutting and digitally processing soil-rock mixture samples, the distribution of stone content was identified and corrected, which solved the error problem caused by the uneven distribution of soil-rock mixture samples in finite element numerical calculations and improved the accuracy of soil mechanics theoretical research.

CN116883350BActive Publication Date: 2026-04-28CIVIL AVIATION UNIV OF CHINA
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Patent Information

Application Number
CN202310832390.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-07
Publication Date
2026-04-28
Estimated Expiration
2043-07-07

AI Technical Summary

Technical Problem

In finite element numerical calculations, the uneven distribution of stone content along the axial and radial directions in soil-rock mixture samples leads to differences between the model and the actual soil-rock mixture samples, affecting the comparison and correction of simulation data and experimental data, which in turn is detrimental to soil mechanics theoretical research.

Method used

By cutting soil-rock mixture samples, collecting and preprocessing profile digital images, taking pictures with a digital camera, combining weighted average method and gray value calculation, processing images in zones, and using stone content identification and correction formulas to identify and correct the stone content distribution of each zone.

Benefits of technology

It enables accurate identification of the stone content distribution in soil-rock mixture samples, reduces errors in finite element numerical calculation models, and improves the accuracy of soil mechanics theoretical research.

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Abstract

The application discloses a kind of soil and stone mixture sample stone content distribution identification method, including soil and stone mixture sample sectioning, the section digital image of soil and stone mixture sample after sectioning is obtained and saved;Using the average stone content calculation formula obtains the average stone content of soil and stone mixture sample after sectioning;The axial and radial partition quantity of section digital image and block stone, soil boundary gray are set, and it and saved section digital image, the average stone content is read into soil and stone mixture stone content distribution identification software, obtains the RGB value of each pixel point in the section digital image and the number of axial and radial pixel points;The section digital image is processed, and the gray value of each pixel point in the section digital image after partition processing is calculated, and the stone content identification formula is used to preliminarily identify the stone content of each area of section digital image, and the stone content of the digital image of preliminary identification is corrected using the stone content correction formula.
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