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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




Description of the DPSH test

The DPSH dynamic penetration test is a continuous test which consists of counting the number of blows, N, needed to drive 20cm lengths of metal bar (N20)

The equipment used is a DYNAMIC PENETROMETER with caterpillar wheels, model PDP 3.10D (diesel) by TECOINSA. It functions hydraulically and is mounted on hydraulic rubber caterpillars. The metal bar utilised measures 1000mm, 32mm Ø and has a 20cm non recuperable cone.

The reduced dimensions of this drill enable us to work where there is a problem of limited physical space (e.g. buildings to be demolished), or difficult access (e.g. interior courtyards, hanging terraces, mountaineous areas with no access route etc.) The weight of this apparatus (<800kg) facilitates its transport by crane, earthmoving machine or helicopter.

With these tests we obtain the parameter N20, which enables us to calculate the resistance to the dynamic penetration of the point and it is correlated with the principles of geomechanical parameters.


Calculation of the resistance profile of the terrain
Relative density & internal friction angle in granular soils
Load capacity of superficial and deep foundations.
Calculation of subsidence by empirical methods.
Quality control of the management of the terrain



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