Ground-Penetrating Radar for Strata Control

摘要

As part of the Bureau of Mines health and safety research program in strata control, a ground-penetrating radar (GPR) system capable of penetrating approximately 10 ft into the mine roof has been devised to identify anomalistic conditions. The GPR system consists of a transmitter utilizing a dipole antenna, and a receiver, consisting of a dipole antenna fed into a sampler with a time base housed in a storage oscilloscope. A computer was utilized for data acquisition and data processing. Data analysis by computer enhancement revealed recognizable return radar signatures from the middle man rock and main roof of the test site. Early recognition of such features could lead to immediate corrective actions and result in the saving of lives.