In-Situ Investigation of Wave-Induced Pore Pressure in Seabed in the Mississippi River Delta, USA
In-Situ Investigation of Wave-Induced Pore Pressure in Seabed in the Mississippi River Delta, USA
Submarine landslides are complex phenomena influenced by various triggering and preconditioning factors, with sea waves being a primary contributor. Understanding the seabed's response to wave loads and how pressure dissipates with depth is crucial for comprehending the mechanisms behind these landslides. To investigate this, two tripods were deployed in East Bay, LA, located between South Pass and Southwest Pass of the Mississippi River delta. These tripods were positioned at water depths of 5 meters and 10 meters for one month. Each tripod was equipped with DIY wave gauges positioned above the seabed, recording continuous data at 10 Hz, and RBRsolo3, HOBO water level sensor, and Piezometer mounted inside the seabed. The study will analyse the performance of the different sensors, examining how varying recording frequencies affect the pressure data. Additionally, it will explore the buildup of pore water pressure due to wave loads on the seabed.
Omar Alawneh; Navid Jafari; Hamed Nasiri; Jacob Reinhardt; Kehui Xu
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
2 - Site characterization, in-situ and laboratory testing, measurement
https://doi.org/10.53243/ISFOG2025-530
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