Pipeline end termination (PLET) structures used in subsea deep-water developments are subjected to signifi-cant axial expansion forces arising from heating up and cooling down of the incoming HP/HT pipelines. Re-sisting these forces with a fixed foundation solution such as a skirted mud mat or hybrid foundation with pin piles would lead to excessive foundation sizes when axial expansions are large. Allowing the foundation to slide over the seabed as a whole could lead to a more economical solution. To design this foundation, its dis-placements and rotations during many cycles of large-amplitude must be precisely identified. Series of small scaled model tests have been performed in centrifuge to study this sliding foundation. This study deals with the impact of the undrained cohesion profile of the soil on the PLET response under cyclic in-plane loading.