Underground Anomalies Mapping in the Running Track Ballast Cushion at Palej Railway Station
Scope of Work:
Underground anomaly mapping using Ground Penetrating Radar (GPR) up to the depth of 1.5 to 2.0 m.
Location:
Palej Railway Station, Gujarat.
Client:
Indian Railways.
Equipment:
GSSI SIR 4000 equipped with 400 MHz center frequency antenna.
Summary:
A Ground Penetrating Radar (GPR) survey was executed for an approximate rail track length of 1100 m (divided into two patch Patch 1 and Patch 2) of the down line in Palej Railway Station yard, Gujarat in the month of July 2023. The objective of the project was to use non-destructive GPR technology to map potential undesired objects, such as rail pieces, concrete slabs, utilities, voids, or caked ballast within the area. The presence of scrap in the ballast has been causing issues during the screening process with the Ballast cleaning machine (BCM), leading to reduced output and damage to existing cables. This survey aimed to locate and generate a map of the scrap materials without causing any destruction. As this can help the IR authorities to plan the smooth movement of BCM and, assists in making informed decisions regarding maintenance, repair, and optimization of the railway track infrastructure.
The GPR survey has been executed using 400 MHz center frequency antennas mounted with GSSI SIR 4000 GPR systems.