Estimating the lateral profile of helical piles using modified p-y springs
Hyeong-Joo Kim,Hyeong-Soo Kim,Peter Rey Dinoy,James Vincent Reyes,Yeong-Seong Jeong,Jun-Yong Park,Kevin Bagas Arifki Mawuntu
Abstract
A growing trend of utilizing helical piles for soft soil strata to support infrastructure projects is currently observed in Saemangeum, South Korea. Recognized mainly due to its ease of installation and reusability proves to be far more superior compared to other foundation types in terms of sustainability. This study applies modified p-y springs to characterize the behavior of a laterally loaded helical pile with a shaft diameter of 89.1 mm affixed with 3 helices evenly spaced along its embedded length of 2.5 m. Geotechnical soil properties are correlated from CPT data near the test bed vicinity and strain gauges mounted on the shaft surface. A modification factor is applied on the p-y springs to adjust the simulated data and match it to the bending moment, soil resistance and deflection values from the strain gauge measurements. The predicted lateral behavior of the helical pile through the numerical analysis method shows fairly good agreement to the recorded field test results.
Hyeong-Joo Kim — Department of Civil Engineering, Kunsan National University, 558 Daehak-ro, Miryong-dong, Gunsan 54150, Republic of Korea
Hyeong-Soo Kim, James Vincent Reyes, Yeong-Seong Jeong, Jun-Yong Park and Kevin Bagas Arifki Mawuntu — Department of Civil and Environmental Engineering, Kunsan National University, 558 Daehak-ro, Miryong-dong, Gunsan 54150, Republic of Korea
Peter Rey Dinoy — Renewable Energy Research Institute, Kunsan National University, 558 Daehak-ro, Miryong-dong, Gunsan 54150, Republic of Korea
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