Page 230 - Pipelines and Risers

Installation Design 203

01 -
-
z

K -0.2
t-
u)

Figure 12.17 Total axial strain and plastic strain in an elasto-plastic pipe from the free end on the seabed
to the tensioner on the laybarge.

~ ~~
PIPE ROTATION

f

2 -40
0 -50
a -60
-70
0 500 1000 1500 2000 2500
DISTA NC E (m )
s
-Era s to- Plas tic Mate rial - tic Material
Ela
Figure 12.18 Axial rotation of the pipeline from the free end.