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Standard CAN/BNQ 2501-135
Soils - Determination of the Coefficient of Permeability by the Lefranc Method

This national standard specifies the test method used to determine the coefficient of permeability of the soil around a cavity (a “lantern”) created under the end of a drill casing driven by ramming, a test method particularly suited to soils with a coefficient of permeability greater than 10-7 m/s. Specifically, the standard deals with five main elements:

  • apparatus and installation method;
  • choosing a test method;
  • procedure (constant head test and falling or rising head test);
  • calculating and expressing the results (constant head test and falling or rising head test);
  • test report.

  • Download standard
    7923 ANG CAN/BNQ 2501-135 Soils - Determination of the Coefficient of Permeability by the Lefranc Method
    This is a reaffirmation (reapproval) of the edition dated August 6, 2014.
    Version Language Publication date Edition Updated on No. of pages Price
    +
    2501-135 2501-135A:PDF PDF Anglais 2014-08-06
    (R 2022-04-28)
    5 13 80 $
    +
    2501-135 2501-135AR:PDF Licence PDF réseau (5 utilisateurs) Anglais 2014-08-06
    (R 2022-04-28)
    5 13 240 $
    7922 FRN CAN/BNQ 2501-135 Sols - Détermination du coefficient de perméabilité par la méthode Lefranc
    Il s'agit d'une reconduction (confirmation) du texte de l'édition du 6 aout 2014.
    Version Language Publication date Edition Updated on No. of pages Price
    +
    2501-135 2501-135:PDF PDF Français 2014-08-06
    (R 2022-04-28)
    5 13 80 $
    +
    2501-135 2501-135R:PDF Licence PDF réseau (5 utilisateurs) Français 2014-08-06
    (R 2022-04-28)
    5 13 240 $

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