Preprint Article Version 1 This version is not peer-reviewed

Analysis of Bearing Capacity of Helical Pile with Hexagon Joints

Version 1 : Received: 31 July 2018 / Approved: 31 July 2018 / Online: 31 July 2018 (10:07:54 CEST)

A peer-reviewed article of this Preprint also exists.

Kim, D.; Baek, K.; Park, K. Analysis of the Bearing Capacity of Helical Pile with Hexagonal Joints. Materials 2018, 11, 1890. Kim, D.; Baek, K.; Park, K. Analysis of the Bearing Capacity of Helical Pile with Hexagonal Joints. Materials 2018, 11, 1890.

Journal reference: Materials 2018, 11, 1890
DOI: 10.3390/ma11101890

Abstract

This study aims to improve the shaft with hexagon joints to be a type not requiring welding or bolts in the static load test . In order to evaluate the bearing capacity of helical piles, two sites were selected to conduct pile installation for the field test and the pile load test. For the pile load test, the static pile load test and the dynamic pile load test were carried out, and torque was measured during pile installation for the field test to compare and analyze expected bearing capacity and thus assess the feasibility of the method for estimating the bearing capacity. The field pile load test revealed the bearing capacity of the gravity grout pile was the same or greater than 600kN in the static pile load test in accordance with AC 358 Code. The non-grout pile showed the bearing capacity the same or smaller than 600kN, suggesting gravity grouting is required. Moreover, the field pile load test was used to establish the bearing capacity equation considering the torque in pile installation, and a small number of samples were used to establish the equation which can be used as a basic data.

Subject Areas

Hexagon joint, Helical pile, Bearing capacity, Static pile load test, Dynamic pile load test

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