Multifunctional and modular geotechnical testing device

A multifunctional and modular geotechnical testing device for testing a soil sample, the testing device comprising:

• a testing cell comprising an oedometer ring for accommodating the soil sample, the oedometer ring including a plurality of holes located on and angularly distributed over an internal lateral surface of the oedometer ring, the plurality of holes forming a plurality of channels to access the soil sample from outside the oedometer ring for measuring pore water pressures at plural selected angles of the oedometer ring;
• and
• a plurality of needle probes detachably mountable to the plurality of channels from outside the oedometer ring, the plurality of needle probes being configured to simultaneously measure the pore water pressures at the selected angles of the oedometer ring for avoiding adverse effects due to time-lag when compared to sequential measurements of the pore water pressures, wherein the plurality of needle probes is configured to house a plurality of pore water pressure-measuring sensors used for performing simultaneous measurement of the pore water pressures at each hole of the plurality of holes, wherein each needle probe of the plurality of needle probes is configured to house a corresponding pore water pressure-measuring sensor of the plurality of pore water pressure-measuring sensors.