It shows that when the pipeline is half buried and half exposed, and the sand is clay particles, the pipeline has a downward bending trend. When the sediment is fine sand or very fine pebbles, the pipeline tends to bend downstream.
Explain that when half of the pipe is buried and half exposed and the sediment is sticky, the pipe has a tendency to bend downwards. When the sediment is fine sand and very fine pebbles, the pipe has the tendency to bend downstream.
It shows that when the pipeline is half buried and half exposed, and the sediment is clay, the pipeline tends to bend downward. When the sediment is fine sand and very fine pebble, the pipeline tends to bend downstream.