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Method and Loading Module to Mechanically Increase Pile/Drilled Shaft End Bearing Stiffness

Background Drilled shafts are deep foundation elements constructed in soil to resist compressive, uplift and lateral loads. This process involves drilling a hole to a design depth, and filling the hole with reinforcing steel and concrete. Tip resistance is not usually accounted for when estimating the overall capacity of drilled shafts and bored piles...

Published: 10/1/2019 | Updated: 8/2/2018 | Inventor(s): Sherif Elfass, Gary Norris

Keywords(s):

Category(s): Construction & Built Environment, Engineering & Manufacturing, Environment & Sustainability

Deep Foundation Porewater Pressure Dissipater

BackgroundPorewater pressure, or the pressure of groundwater held within soil, rock, or gaps between particles, is an important factor in determining the stress state of soil. If the porewater pressure is increased to equal the applied soil effective stress, the soil may lose its strength and stiffness, and act more like a liquid, in a process called...

Published: 8/16/2018 | Updated: 8/2/2018 | Inventor(s): Sherif Elfass, Gary Norris

Keywords(s):

Category(s): Construction & Built Environment, Engineering & Manufacturing, Environment & Sustainability