Abstract
The shaft-grouted method has been applied on high-rise buildings in Ho Chi Minh City for the purpose of increasing the bearing capacity of barrette piles. The Exim Bank Building foundation, using two kinds of shaft-grouted barrette piles, was 65m (TP1) and 85m (TP2) in depth. To assess the bearing capacity, this project assembly used the O-cell tools installed at 49m depth below the pile head level. Shaft grouting was performed from -25m to the TP1 pile toe level and -65m to the TP2 pile toe level. This work is based on the data from the O-cell experiments at the construction site and the results of finite element simulation in Plaxis software. The effectiveness of shaft grouting was analyzed and the length and position of the ejector were evaluated and compared in order to find the best solution for applying shaft grouting with the aim to ensure safety and mitigate economic problems.
Highlights
High-rise building foundations in Ho Chi Minh City are constructed by using bored piles and barrette piles to ensure the total loads of structures
The Osterberg test (O-cell test) in principle is exactly the same as the static compression test, and it is dedicated to bored piles and barrettes
The purpose of this paper is to evaluate the effectiveness of shaft grouting method on the barrette piles in Ho Chi Minh City and compare it with the no shaft-grouted method in order to find the best position to install the ejector using the Finite Element Method (FEM)
Summary
High-rise building foundations in Ho Chi Minh City are constructed by using bored piles and barrette piles to ensure the total loads of structures. Authors in [7] carried out laboratory tests in sand to find the behavior of density, soil gradation, and stress on the shaft resistance in grouting methods. Authors in [2, 3] studied the bored piles in Ho Chi Minh City. The testing principle is to apply the load directly on the pile tip or the pile body using a device called Osterberg cell. The Osterberg test method will give a result in which the two curves of load and displacement at the pile tip and pile head are built independently. The purpose of this paper is to evaluate the effectiveness of shaft grouting method on the barrette piles in Ho Chi Minh City and compare it with the no shaft-grouted method in order to find the best position to install the ejector using the Finite Element Method (FEM)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Engineering, Technology & Applied Science Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
