A sample preparation device and method for compacted sand pile composite soil for dynamic triaxial test

By designing the composite soil sample device of extruded sand pile for dynamic three-axis test, the problems of inclination of drilling holes, uneven sand piles and low efficiency in manual drilling holes were solved, and the unity of vertical drilling holes and sand pile density was achieved. Improve sample quality and sample preparation efficiency.

CN112033775BActive Publication Date: 2025-01-17CCCC THIRD HARBOR ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202010915836.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-09-03
Publication Date
2025-01-17
Estimated Expiration
2040-09-03

AI Technical Summary

Technical Problem

In the dynamic three-axis test, when manually drilling holes to prepare composite soil samples of sand piles, there are problems such as slow drilling speed, difficulty in ensuring verticality, different density of sand piles, and high number of samples, there are problems such as penetration. Causes inefficiency and waste.

Method used

A sample sample device for extruded sand pile composite soil for dynamic three-axis tests including drilling unit and compacting unit was designed. The drilling unit realizes vertical drilling through platform components, slider components and drilling tools, and the compacting unit passes through The slide rod, gravity slider and positioner accurately control the impact energy to ensure the compaction of the sand pile.

Benefits of technology

The verticality of the drilling holes is guaranteed, the uniformity of the sand pile density and the improvement of sample preparation efficiency are achieved, and the sample waste is reduced and the overall sample quality is improved.

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Abstract

The present invention discloses a sample preparation device for a compacted sand pile composite soil for a dynamic triaxial test, comprising a drilling unit and a compaction unit. The drilling unit comprises a platform assembly, a slider assembly and a drilling tool, wherein the platform assembly comprises a platform plate, four supporting legs and two columns; the slider assembly comprises a slider and a rotating shaft; the drilling tool comprises a wrench drill chuck and a twist drill. The compaction unit comprises a sliding rod, a gravity slider, a positioner and a compaction head. The present invention also discloses a sample preparation method for a compacted sand pile composite soil for a dynamic triaxial test. The present invention solves the problems of inclined drilling, uneven sand piles and low sample preparation efficiency in the manual drilling of composite sand and soil samples in the dynamic triaxial test.
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Citation Information

Patent Citations

  • Sample preparation device of compacted sand pile composite soil body for dynamic triaxial test

    CN212363845U