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<p>The paper analyzes the possibility of predicting the set per blow for piles in plastic-frozen soils based on the data of a thermal cone penetration test (T-CPT). Field studies of the reaming effect were conducted; the influence of penetration depth, soil temperature, distance of the friction sleeve from the cone, and soil resistance to penetration were investigated. A modified version of formula by N. M. Gersevanov is proposed to evaluate the residual set per blow based on T-CPT data, taking into account the characteristics of the hammer and pile. As a result, a method for assessing the possibility of driving piles in plastic-frozen soils to the project reference according to T-CPT data is proposed.</p>

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Assessing the Possibility of Driving Piles in Plastic-Frozen Soils Based on the Data of Thermal Cone Penetration Tests

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • O. N. Isaev

摘要

The paper analyzes the possibility of predicting the set per blow for piles in plastic-frozen soils based on the data of a thermal cone penetration test (T-CPT). Field studies of the reaming effect were conducted; the influence of penetration depth, soil temperature, distance of the friction sleeve from the cone, and soil resistance to penetration were investigated. A modified version of formula by N. M. Gersevanov is proposed to evaluate the residual set per blow based on T-CPT data, taking into account the characteristics of the hammer and pile. As a result, a method for assessing the possibility of driving piles in plastic-frozen soils to the project reference according to T-CPT data is proposed.