Earth dams/cofferdams built by dumping in the water
Earth dams/cofferdams built by dumping in the water
(OP)
I am looking for information on earth dams/cofferdams built by dumping in the water. The question of interest is what slope would the material under water be if dumped from a barge or by end-dumping from trucks. The material could be rock fill, low plasticity clayey silt (50-60% fines) and sand and gravel. The expected deposition depth is approx. 70 ft..
I would appreciate if you could share your experience and/or provide me with the relevant references.
Thank you,
I would appreciate if you could share your experience and/or provide me with the relevant references.
Thank you,





RE: Earth dams/cofferdams built by dumping in the water
IMHO, dumping the material that you describe into water (even calm water) and expecting it to settle through 70 feet of water to anywhere near the desired location is a complete waste of time and money. Try placing it underwater from the surface instead... Expensive? Yes, but at least it is possible.
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