Subtidal Slope Stability (Bay Mud)

[fortinbras]

After dredging contaminated sediments, a cap is to be placed to contained contaminated material left in place. Parts of the area are at slopes up to 5:1. The cap will comprise bay mud from a nearby area that will be placed with a clamshell and leveled (but not compacted). THe material is San Francisco Young Bay Mud with high clay and silt content.

Has anyone experience with stable slope limits for a material of this type?

 

[Focht3]

Based on the description you have provided, no. And since it's going to be placed in an uncontrolled manner ("... placed with a clamshell and leveled (but not compacted.)...") I'm not sure that you will find any references.



Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora. See faq158-922 for recommendations regarding the question, "How Do You Evaluate Fill Settlement Beneath Structures?"