Soils - Determination of the Coefficient of Permeability by the Lefranc Method

Bureau de normalisation du Québec (BNQ)
Standards Development Organisation:
Bureau de normalisation du Québec
Contact Information:
Bureau de normalisation du Québec
Working Program:
View the BNQ work program
Designation Number:
CAN/BNQ 2501-135
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
Reaffirmation
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This standard specifies the test method used to determine the coefficient of permeability of the soil in place around a cavity, named lantern, opened under the end of a drill casing driven by ramming.

NOTES —

  1. This test method is particularly adapted for soils with a coefficient of permeability greater than 0‑7 m/s.

The coefficient of permeability or hydraulic conductivity, in metres per second (m/s), is expressed by the symbol k in geotechnical engineering and by the symbol K in hydrogeology.

Project need:

The committee has decided to reaffirm the standard.

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