Objective:

Subsurface imaging using Ground Penetrating Radar (GPR) for utility mapping.

Apparatus used:

Ground Penetrating Radar Device.

 Description

Ground Penetrating Radar (GPR) is a non-destructive geophysical technique that uses high-frequency electromagnetic waves to investigate subsurface structures and materials. It can be used for utility mapping to locate and identify buried utilities, such as pipes and cables.

STEP  1 

 Press the button to Switch On.

STEP  2 

 Unfold the holding arm of the Ground Penetrating Radar Device and open the tablet holder.

STEP  3 

 Place the tablet on the holder of the Ground Penetrating Radar Device and then connect the cable.

Front View

Back View

STEP  6 

  Click on the start button to start collecting data for the required length of the ground.

STEP  7 

 The data collected can be viewed,increase the contrast of the data to easily identify the utilities mapped.

STEP  8 

 Find the various utilities that have been mapped in the data collected.

Click on the top of the convex shapes appearing on the data set as they are the signature for different pipes & cables present under ground.

Utility 1

Utility 2

Result

Two utilities have been found in the data set.

Utility 1 - Depth of 0.96m & a Horizontal distance of 22.50m

Utility 2 - Depth of 0.33dm & a Horizontal distance of 13.50m

STEP  9 

 Click on the new job to create a new folder & start data collection.

Do all the intial settings done in step 3 and 4.

STEP  11 

 Find the various utilities that have been mapped in the data collected.

Click on the top of the convex shapes appearing on the data set as they are the signature for different pipes & cables present under ground.

Gas Pipe

Electrical Cable

Water Reticulation Pipe

Result

Three utilities have been found in the data set.

Gas Pipe - Depth of 0.96m & a Horizontal distance of 31.50m

Electrical Cable - Depth of 1.60m & a Horizontal distance of 27.00m

Water Reticulation Pipe - Depth of 1.29m & a Horizontal distance of 22.50m