Solution of Heat Dilatation
The heat dilation of the pipeline may be solved in several methods:
1) Through the use of compensating bodies L, Z, U
2) Heat tensioning of the pipeline
3) Compensation with the use of axial compensators
On the straight pipeline at the distance t_{i}, there exist the socalled "virtual" fixed points – positions in that the pipeline does not move as a result of temperature change under the same initial conditions (the same burial depth, friction force, ...). In an ideal case, at fulfilment of given prerequisites, this point is placed in the middle.
For distance calculation of the "virtual" fixed point:



where: 
L 
 
length of the piping piece 
[m] 
h1 
 
height of the covering layer at the beginning 
[m] 
h2 
 
height of the covering layer at the end 
[m] 

