NRC Video Clips

The nine links lettered A to I below will take you to amateur videos records of events during the wave flume model testing at the NRC hydraulics laboratory in Ottawa.

 

A

In this clip you can watch as sand liquefaction is triggered by wave action and then its subsequent return to stability at a lower potential and higher density.

B

Shown here is the way in which we built model berms having the soil-structural benefits of inward Seepage Forces.

C

The removal of the drainage well array, prior to wave loading, is shown here.

D

This clip shows considerable erosion of top of sandfill because of the crest being too close to the water surface.

E

Lowering the berm crest level can be seen to reduce the amount of erosion required.

F

Model berm behaviour while using internal drainage and relatively low waves.

G

Model berm behaviour while using internal drainage and intermediate wave height.

H

Model berm behaviour while using internal drainage and waves of greater height.

I

Shown in this clip is the circular header we employed when modeling underwater sandfill island building.