To obtain the resistivity of the ground with the help of Georesistivity meter.
Apparatus used:
Georesistivity meter, Clips and wire,
Battery, Electrodes and Hammer.
DescriptionGeoresistivity Test: The electrical resistivity test is
useful for studying the existence of subsurface structures by observing the differences in
their resistance to electrical current flow and hence determining the presence of
groundwater.
STEP 1
Connect the potential electrode to current.
Trial
1
Source:NITK, Surathkal Campus
Isometric View
STEP 2
Connect the potential electrode to the negative side of the resistivity meter.
Source:NITK, Surathkal Campus
Isometric View
STEP 3
Connect the potential electrode to the positive side of the resistivity meter.
Source:NITK, Surathkal Campus
Isometric View
STEP 4
Connect the potential electrode to the negative side of the resistivity meter.
Source:NITK, Surathkal Campus
Isometric View
STEP 5
Connect the resistivity meter to battery.
Bottom Left
Isometric View
Observations:
Ω-mKR / Total
Result:
Mean Resistivity = 2321 Ω
Repeat the steps for next trials
Based on the type of the soil , the type of structure and accordingly type of foundation can be decided.