TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

A pipeline operated at varying temperatures due to occasional shut down of theproduction will expand at positive temperature changes. If the pipeline is not free toexpand but restrained by friction, the pipe will be subjected to an axial compressive load. If the force exerted by the pipe on the soil cover exceeds the vertical restraint created by the pipe's submerged weight, its bending stiffness and the soil cover, the pipe will tend to move in the vertical plane, and considerable displacements may occur.... This model is a consistent semi-analytical linearized procedure and may as such only be considered sufficiently accurate when the upheaval displacement is relatively small.  2, record 1, English, - upheaval%20displacement

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Thawing of permafrost terrain along the pipeline right-of-way could contribute to loss of pipe cover and soil strength due to thawing of ice-rich backfill. This could lead to increased potential for erosion along the sunken ditch, pipe exposure and/or upheaval displacement of the pipe.  2, record 2, English, - sunken%20ditch

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Le dégel de terrain de pergélisol le long de l'emprise du pipeline pourrait contribuer à la perte du remblayage de la conduite et de la force du sol attribuables au dégel de matériaux de remblai riches en glace. Cela pourrait mener à un potentiel accru d'érosion le long de la tranchée effondrée, à l'exposition de la conduite et/ou au déplacement vers le haut de la conduite.  2, record 2, French, - tranch%C3%A9e%20effondr%C3%A9e

Record 2,  Textual support,  Spanish