A quantitative determination method for cemented soil material ratio for visual model test

By measuring rock and soil parameters on site and calculating the quartz sand particle size and glue-stone ratio using regression equations, the problem of insufficient strength of transparent clay and rock materials was solved, the scientific basis and similarity principle of visual model tests were unified, and the accuracy of the tests and the feasibility of engineering applications were improved.

CN115615845BActive Publication Date: 2025-09-12HAINAN UNIV
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Patent Information

Application Number
CN202211230736.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-10
Publication Date
2025-09-12
Estimated Expiration
2042-10-10

AI Technical Summary

Technical Problem

Existing transparent clay and transparent rock materials lack strength in model tests, lack effective control of physical and mechanical parameters during material configuration, and are difficult to achieve the unification of visualization and similarity principles.

Method used

The density, internal friction angle and cohesion of the rock and soil are measured by on-site sampling, the quartz sand particle size and cement-stone ratio are calculated using the regression equation, and the proportion of cementing soil materials is determined in combination with the transparency requirements to ensure that both similarity principles and transparency are taken into account.

Benefits of technology

It provides an accurate and reliable cementing soil material ratio method, meets the needs of visual model tests, simplifies the operation process, and improves the scientific nature of the test and the feasibility of engineering applications.

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Abstract

The present invention discloses a method for quantitatively determining the proportion of cemented soil materials for visual model testing, the method comprising the following steps: Step 1, completing on-site sampling of rock and soil at the engineering site where a scaled model test is required; Step 2, substituting the values ​​of the specific gravity γ and the internal friction angle #imgabs0# measured in Step 1 into the regression equations Y1 and Y2 corresponding to the specific gravity γ and the internal friction angle #imgabs1#, respectively; Step 3, substituting the values ​​of the quartz sand particle size and the cement-to-stone ratio solved in Step 2 into the regression equation Y3 corresponding to the cohesion c, to complete the solution of the cohesion c. Beneficial effects: It has the advantages of high accuracy and reliability of calculation results, and can provide a scientific basis for the implementation of visual scaled rock and soil model tests. It is obtained by applying direct shear test / triaxial compression, is simple to operate, and is feasible for promotion in actual engineering.
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