Features of geotechnical testing of square section piles in seasonally frozen soils
Zhussupbekov A. Omarov A. Montayeva A.
December 2025Springer Nature
Smart Construction and Sustainable Cities
2025#3Issue 1
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.
Bearing capacity , Frozen soils , PDA , Pile test , Safety factor , SLT
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Department of Civil Engineering, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
Department of Civil Engineering, Korkyt Ata Kyzylorda State University, Kyzylorda, Kazakhstan
Department of Civil Engineering
Department of Civil Engineering
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