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Abstract
The high-strain dynamic test method possesses the attributes of speed, efficiency, and environmentally-friendly, low-carbon characteristics. To study the reliability of the high-strain dynamic test method in detecting the bearing capacity of pile foundation in permafrost regions, 4 test piles, each with a length of 15 m and a diameter of 1.0 m, were poured based on the actual bridge construction project in the permafrost region of Daxing'an Mountains in China. Based on the temperature data between the piles and soil, the refreezing state of the pile foundation was comprehensively judged. Subsequently, the static method was employed to assess the friction resistance values and single pile bearing capacity of each soil layer on the pile side under different freezing states before and after the pile foundation refreezing. Building upon these findings, the restrictive parameters for soil elastic limit
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Details
1 Zhejiang Shuren University, School of Urban Construction, Hangzhou, China (GRID:grid.413073.2) (ISNI:0000 0004 1758 9341)
2 Northeast Agricultural University, School of Water Conservancy and Civil Engineering, Harbin, China (GRID:grid.412243.2) (ISNI:0000 0004 1760 1136)