Abstract
An underwater rammed stone column (RSC) is proposed in this paper to improve the bearing capacity of the coastal marine clay. The main idea of this technology is to drill a hole into the seabed from the sea surface with protection from a large steel pipe and then use a rammer to compact the aggregates into the seabed to form the RSC composite foundation. A series of model tests were conducted to validate the installation method and evaluate the bearing capacities of RSC. The test results showed that the bearing capacities of RSCs are much better than those of the traditional stone columns (TSCs) with the ultimate bearing capacity of maximum improving 77.6% for the full-length columns and 65.3% for the floating columns. The effective length of the RSCs was 6 times column diameter and most of the load is born by the top sections of RSCs with a length of 3 times column diameter. The bulging failure occurs in TSC and RSC with the maximum bulging position at approximately 1.5 times column diameter from the column head.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.