Quality Control Grouting in Underground Mining

This web page shows the use of the software system GEORADAR-EXPERT to control the quality of jet grouting results in underground mines. This is an urgent task, as in the process of underground work there can be problems caused by the presence of voids, cavities, cracks in the stabilized soil. All these defects affect the strength of the soil-cement mass.

A GPR survey of the face measuring 4 by 4 meters was carried out with a 300 MHz GPR antenna. The georadar profile had a horizontal orientation and passed through the face center. Below is a scheme works in the face and the result of GPR profiling.