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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A slot dug into the earth to build the foundation for a wall.  3, record 1, English, - basement%20trench

Record number: 1, Textual support number: 1 CONT

Discovered during road works related to the A20 highway project, the site has been scraped away with engines. 29 "hollowed structures" (pits, log holes, and basement trenches) have been found.  4, record 1, English, - basement%20trench

Record number: 1, Textual support number: 1 OBS

[This feature] often provides very important stratigraphic evidence.  3, record 1, English, - basement%20trench

Record number: 1, Textual support number: 2 OBS

basement trench: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 1, English, - basement%20trench

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Découvert sur le tracé de l'autoroute A20, le site a été décapé mécaniquement. 29 structures en creux (fosses, trous de poteaux et tranchées de fondation) ont été mises en évidence.  2, record 1, French, - tranch%C3%A9e%20de%20fondation

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

If a foundation is installed on a sloping site, it may be necessary to dig a stepped trench and install a stepped footing and foundation. It is important that all sections are level and that each horizontal section of the footing is at least twice as long as the vertical drop from the previous section.  1, record 2, English, - stepped%20trench

Record number: 2, Textual support number: 2 CONT

Building a Dry Stone Wall... Build a stair-step on any steep slope if the slope is more than 10 degrees. Dig a "stair-step" trench for the wall so each section rests on a flat, level foundation. The ground under the wall can slide away on a slope, especially in spring when the surface thaws while it is still frozen underground.  2, record 2, English, - stepped%20trench

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

L'excavation doit toujours commencer à la partie supérieure, se poursuivre en descendant et en établissant une fouille en gradins. Chaque coupe sera décalée sur la précédente, pour que le talus ait la pente voulue.  1, record 2, French, - fouille%20en%20gradins

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A trench excavated below the normal base of a dam or other structure and filled with relatively impervious material to reduce percolation under the structure.  3, record 3, English, - cutoff%20trench

Record number: 3, Textual support number: 1 CONT

Excavations for the cut-off trench began on June 1, and were completed by the end of the month. Suitable material excavated from the trench was placed in the embankment. Following excavation of the trench, the cut-off wall footing was cut into bedrock to a depth of three feet. Placement of the cut-off wall followed excavation of the footing and was completed by the end of july. The cut-off wall extends across the bottom of the trench and up both abutments and provides a water-tight seal between the dam and foundation.  2, record 3, English, - cutoff%20trench

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Excavation dans l'assise d'un barrage ou d'un autre ouvrage, remplie de matériaux relativement imperméables pour réduire l'infiltration.  3, record 3, French, - tranch%C3%A9e%20parafouille

Record number: 3, Textual support number: 1 OBS

Parafouille : Organe d'étanchéité inséré dans la fondation. Tranchée parafouille : Tranchée creusée dans la fondation et remplie par exemple d'argile. Écran parafouille : Paroi moulée creusée à la benne et remplie de bentonite-ciment ou béton.  4, record 3, French, - tranch%C3%A9e%20parafouille

Record 3,  Textual support,  Spanish