Case Study: Dynamic Back Pressured Shear Box

The Tuaheni Landslide Complex (TLC) is located on the upper slope of the Hikurangi Margin, off the East Coast of the North Island, New Zealand. They have developed novel laboratory-based testing using gravity core samples from within the TLC and a Dynamic Back-Pressured Shearbox (DBPSB) from GDS Instruments to replicate offshore slope conditions. The DBPSB was used to test the behavior of the TLC in response to simplified earthquake shaking and increased pore-fluid (PWP) and pore-gas pressure (PGP) within the landslide mass.