Ground Penetrating Radar (GPR) systems - GSSI
Railway evaluation using GPR
Concrete Inspection
Utility Locating
Road Inspection
Geology
Archaeology
Bridge Inspection
Environmental Assessment
Ice and Snow
Agriculture and Forestry
Mining
Railway Evaluation
Forensics
Military and Security
Research
What is GPR?
What is EM?
FAQs

Ground Penetrating Radar for Railway Evaluation

  • Overview
  • Ballast Condition Assessment

Ground Penetrating Radar to Evaluate Rail Ballast, Sub-ballast and Sub-grade

Railroad maintenance and service providers have traditionally relied on visual inspection and excavation to assess ballast condition and measure sub-ballast and sub-grade. Ground penetrating radar is used to indicate ballast fouling and accurately measure the structural layers to a higher precision and in far less time than with traditional methods.

REMSA

 

Ballast Condition Assessment

With the introduction of high frequency, air-launched antennas, rail maintenance engineers now have a qualitative tool to measure ballast fouling over large sections of track in minimal time. Allocate rehabilitation efforts and funding only to the sections that require priority attention while minimizing track downtime.

Processed data (top) showing clean ballast thickness and locations of high moisture contrast. Ballast condition data (bottom) mapped in Google Earth™.

GPR survey for rail ballast condition

GSSI Recommends:

BallastScan
Antenna: 2 GHz horn

 

Copyright © 2001-2008 Geophysical Survey Systems, Inc.
All Rights Reserved

Geophysical Survey Systems, Inc.
A Wholly Owned Subsidiary of OYO Corporation

Email GSSI  | Tel: 603.893.1109