Table of Contents Author Guidelines Submit a Manuscript
Advances in Civil Engineering
Volume 2017, Article ID 2548020, 11 pages
https://doi.org/10.1155/2017/2548020
Research Article

Static and Dynamic Load Tests of Shaft and Base Grouted Concrete Piles

1Griffith School of Engineering, Griffith University, Gold Coast, QLD, Australia
2School of the Civil Engineering, Shandong Jianzhu University, Jinan, Shandong, China

Correspondence should be addressed to Jialin Zhou; ua.ude.inuhtiffirg@uohz.nilaij

Received 3 May 2017; Accepted 20 September 2017; Published 31 December 2017

Academic Editor: Hossein Moayedi

Copyright © 2017 Jialin Zhou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper examines shaft and base grouted concrete piles by conducting vertical static load tests (SLTs) and dynamic load tests. Three concrete piles with shaft and base grouting, with base grouting only, and without grouting techniques were selected, and compressive SLTs were conducted. Two piles with grouting were also assessed with dynamic load tests. Another two uplift SLTs were conducted to one shaft and base grouted pile and one pile without grouting. Traditional presentations were provided to check whether the bored piles reached the design requirement. Interpretations of test results were also provided to determine the ultimate pile capacity. Results from these 5 SLT programs indicated that double-tangent and DeBeer's methods are close to each other, and Chin's method overestimates the pile capacity. Comparison of the results from the SLTs and dynamic load tests shows that the results from Chin's method are close to dynamic results, and Mazurkiewicz's method overestimates for friction resistance. The results also demonstrate that base and shaft grouted pile and base grouted pile increase by 9.82% and 2.89% in compressive capacity, respectively, and compared to the uplift SLTs; there is a 15.7% increment in pile capacity after using base and shaft grouting technology.