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<p>This study compares the bearing capacity results of piles obtained through static and dynamic load tests, using different safety factors. The Static Load Test (SLT) based on GOST standards indicated a bearing capacity of 1400 kN. After applying a safety factor of 1.2, the ultimate capacity was calculated as 1167 kN, considered as the baseline (100%) for comparison. The Cone Penetration Test (CPT) at a depth of 7&#xa0;m yielded a lower bearing capacity of 930 kN, which, after applying a safety factor of 1.25, resulted in an ultimate capacity of 744 kN (63.8% of the SLT value). The Dynamic Load Test (PDA) according to ASTM standards showed the highest bearing capacity, with an average of 1799 kN. Applying a safety factor of 1.4, the ultimate capacity was determined to be 1285 kN, which is 10% higher than the SLT value (110%). This analysis underscores significant variations in pile bearing capacity depending on the testing method, with dynamic tests generally yielding higher ultimate capacities after adjusting for safety factors.</p>

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Features of geotechnical testing of square section piles in seasonally frozen soils

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月22日

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  • Askar Zhussupbekov,
  • Abdulla Omarov,
  • Ainur Montayeva

摘要

This study compares the bearing capacity results of piles obtained through static and dynamic load tests, using different safety factors. The Static Load Test (SLT) based on GOST standards indicated a bearing capacity of 1400 kN. After applying a safety factor of 1.2, the ultimate capacity was calculated as 1167 kN, considered as the baseline (100%) for comparison. The Cone Penetration Test (CPT) at a depth of 7 m yielded a lower bearing capacity of 930 kN, which, after applying a safety factor of 1.25, resulted in an ultimate capacity of 744 kN (63.8% of the SLT value). The Dynamic Load Test (PDA) according to ASTM standards showed the highest bearing capacity, with an average of 1799 kN. Applying a safety factor of 1.4, the ultimate capacity was determined to be 1285 kN, which is 10% higher than the SLT value (110%). This analysis underscores significant variations in pile bearing capacity depending on the testing method, with dynamic tests generally yielding higher ultimate capacities after adjusting for safety factors.