1 research outputs found
Laboratory Tests for Backwards Piping Erosion
The U.S. Army Engineer Research and Development Center (ERDC) is conducting research to investigate internal erosion, specifically backward erosion piping, by use of laboratory-scale model testing to understand and properly capture the physics of the problem. Preliminary results show that lower void ratio models, using poorly-graded soils with a coefficient uniformity of 1.5, required a higher critical gradient to initiate backward erosion