For the various trenchless pipe-laying methods pipes with both plastic coating and an additional fiber cement mortar top coating are used. The coating to be selected depends on the installation stresses. In stony or rocky soils in particular, the pipe should be protected by an FCM-S coating.
Otherwise, the pipes are handled in basically the same way as with open trench pipe-laying. Care must be taken not to exceed the permissible elastic bending radii and the maximum tensile forces.
As a rule, shortened pipes are not used in trenchless pipeline sections. We can show you the appropriate procedure for exceptions to the rule.