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Evaluation of Key Parameters Affecting the Bearing Capacity of Helical Piles | ||
| Journal of Rehabilitation in Civil Engineering | ||
| دوره 14، شماره 2 - شماره پیاپی 42، مرداد 2026 اصل مقاله (910.5 K) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2025.2306 | ||
| نویسندگان | ||
| Hamed Bahrami1؛ Soheil Ghareh* 2 | ||
| 1Ph.D. Candidate, Department of Civil Engineering, Islamic Azad University, Arak, Iran | ||
| 2Professor, Department of Civil Engineering, Payame Noor University, Tehran, Iran. | ||
| تاریخ دریافت: 25 فروردین 1404، تاریخ بازنگری: 19 مرداد 1404، تاریخ پذیرش: 26 مرداد 1404 | ||
| چکیده | ||
| This experimental study examined the axial performance of helical piles subjected to compressive and tensile loads, with a particular focus on the effects of helix spacing, number of helices, soil compaction, and loading type. Employing a large-scale frustum-confining vessel (AUT-FCV) to accurately simulate in-situ stress conditions, the behavior of single- and double-helix piles was analyzed in medium- and low-density sandy soils. The findings revealed that soil compaction significantly enhanced pile performance, with medium-dense soils markedly increasing both the compressive and tensile capacities. Optimal performance was observed in double-helix piles with a helix spacing of 1.5 times the diameter, which demonstrated an improved load-bearing capacity and reduced displacement. Notably, in well-compacted soils, the tensile bearing capacity approached or equaled the compressive capacity, underscoring the suitability of helical piles for uplift-resisting applications in such conditions. These results contribute to the advancement of more effective design methodologies for helical pile foundations in sandy soils, particularly in coastal and urban geotechnical contexts. | ||
تازه های تحقیق | ||
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| کلیدواژهها | ||
| Helical pile؛ Bearing capacity؛ Soil density؛ Compressive and Tensile loading؛ Physical modeling | ||
| مراجع | ||
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