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Geonival Geologia Aplicada S.L Gran Via Pau Casals 210 Entresol C E-17480 Roses Tel: 972 253508 Fax: 972 253508Email:

The company

  Our services

  Geotechnical engineering

  Rotational bores with extraction of a continuous sample

  Dynamic penetration DPSH

  Standard penetration test. SPT

  Pit tests


  Talus/slope stabilisation

  Laboratory test

  Hidrological & environmental surveys

  Surveys for environmental impact

  Evaluation of the permeability of the subsoil (Lugeon Test)

  Snow & Avalanches

  Avalanche surveys

  Meteorological stations

  Other surveys undertaken

  Images of studies undertaken

  Scientific Publications





 Evaluation of the permeability of the sustratum

In geotechnical engineering the most utilised test in permeability is the Lugeon test.

Lugeon Test

It is a very ample procedure for estimating in depth the permeability index . Its application is very useful for evaluating the global permeability of a rocky mass, therefore it a method which is indicated for terrains which are not very permeable and cohesive. It consists of measuring the volume of water which can be injected into a borehole, length L, time T, and at a determined pressure H which must be maintained constant.

The length of section to be tested will be isolated by a plug, the actual bottom of the borehole acting as the inferior plug.

The permeability (transmissivity) obtained is expressed in Lugeon units (Lg) One Lugeon unit equals 1 litre per minute per metre, at a pressure of 10 kg/cm² - this is approximately the equivalent of 1× 10-7 m/s.




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