Academy / Pressuremeters & dilatometers
The pressure-meter test consists of progressively applying a lateral load to the terrain using a radially adjustable cylindrical probe which is introduced into the ground. In this way, a curve is obtained showing soil deformation variations corresponding to the pressure applied.
The following table show the Igeotest pressure-meters / dilatometers:
|PRESSURE-METER||DEFORMATION MEASUREMENT||TYPE||DIAMETER (mm)||WORK PRESSURE [bars]|
|MENARD||VOLUMETRIC||PBP||32, 44, 60 y 74||80|
|Igeotest PRD||DISPLACEMENT||PBP||72, 82, 93||300|
|OYO||DISPLACEMENT||PBP||72, 83, 93||200|
There are different mechanisms for inserting the probe into the ground and surveys are divided into different types: self-boring (SBP), push-in(PIP) y pre-bored (PBP) pressure-meters.
It is suitable for use both in soft soils - where the device is introduced into the ground by means of static penetration - and hard soils, where a borehole must be made previous to sampling. The sample container has a 35 ml volume, allowing samples of up to 34.8 ml to be taken.