Testing Study on the Change Law about Internal Friction Angle of Geogrid Reinforced Clay under many Times Freezing-Thawing Cycles

Abstract:

This paper uses quadric orthogonal rotating combination design test, obtains the internal friction angle change values under given many times freezing-thawing cycles for the geogrid reinforced clay with different degree of compactions, moisture contents and reinforcement spacings. Through analysis of the test data and mathematical calculation to get the regression equation about the internal friction angle change value related with fillers compaction degree, initial moisture content and reinforcement spacing, and test the conspicuousness about the equation and the influence factors. Applies the equation to calculate the internal friction angle change values in the else test conditions, the results show that the calculated values and the testing data fit well, the equation can be used for initial calculation of the under many times freezing-thawing cycles. The regression equation provides a theoretical reference for the engineering practice of geogrid reinforced clay.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 186-193
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.186
• Online since: November 2012
• Authors: Rong Fei Zhao, Yong Ning Mi, Wei Gao
• Keywords: Freezing-Thawing Cycles, Geogrid Reinforced Clay, Internal Friction Angle, Quadric Orthogonal Rotating Combination Design Test, Regression Equation

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