Abstract:
Many refineries are under the process of revamping and expanding of their existing facilities. Most of the refineries are located in the coastal areas due to ease of transportation and storage of crude oil. Considering the criticality of structures as well as prevailing soil conditions, most of the structures are supported on pile foundations. Detailed interpretation of sub-surface investigations data followed by liquefaction assessment of the site, it is noticed that site is prone to liquefaction during the seismic event. Among various techniques, driven cast-in-situ piles were selected to mitigate liquefaction. Static cone penetration tests were conducted during the pre and post installation of driven cast-in-situ piles at identified locations. Analysis of static cone penetration test data shows considerable ground improvement post-installation of driven cast-in-situ piles. Challenges faced during the execution of installation of driven cast-in-situ piles are highlighted in this paper and remedial measures adopted at site are also presented.
Abstract: Theme 4