Experimental Investigation of the Mechanical Properties of the Sand-Concrete Pile Interface Considering Roughness and Relative Density.

Materials (Basel) · 2022 · PMC9267591 · PMID 35806605

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closest p

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an increasing trendno p-value reported

From Figure 18 , the secant friction angle φ sec of the interface exhibited an increasing trend with an increase in relative density at the same normal stress.

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