RESEARCH ARTICLE
Simulation Study of the Load-settlement Behavior of a Single Pile Using the Osterberg-cell Test Based on the Load Transfer Theory
Lina Xu*, 1, 2, Xuedong Guo1, Lei Nie1, Yongmei Qian2
Article Information
Identifiers and Pagination:
Year: 2016Volume: 10
First Page: 813
Last Page: 825
Publisher ID: TOCIEJ-10-813
DOI: 10.2174/1874149501610010813
Article History:
Received Date: 12/07/2016Revision Received Date: 19/09/2016
Acceptance Date: 27/09/2016
Electronic publication date: 30/11/2016
Collection year: 2016
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
In this paper, a theoretical relationship between the load and settlement of a single pile in an Osterberg-Cell test was developed, considering the joint action of piles and soil and a detailed deformation analysis was conducted based on the load transfer theory of piles. The shear test and the compression test were used to determine the load transfer parameters for soil layers around a pile at various depths as well as the parameters for pile-tip soils. Based on this method, a simulation analysis program was applied to determine the location of the balance point in the Osterberg-Cell test to provide a reference for the test design. The analytical methods presented in this paper could be considered practical because the results from the simulation test and on-site measurement indicate that the theoretically predicted result is consistent with the measurements. A reasonable selection of the location of the hydraulic jack-like device (O-cell) could maximize the bearing capacity of testing piles to obtain a more accurate ultimate bearing capacity. This study provides a reference for the design of the Osterberg-Cell test as well as pile foundations.