GEOELECTRIC PHASOMETRIC CONTROL OF THE RAILWAY TRACKBED

Abstract

During the operation of the railway track, various defects and deformations may occur and accumulate in the earth bed and its soil base, which leads to a violation of their bearing capacity. The task of developing new technological methods for monitoring the condition of the ground foundation – roadbed – railway track system is becoming urgent. The article proposes a geoelectric phase-measuring method for monitoring the phase of recorded signals with changes in the load on the ground at the base of the railway track. The control of phase characteristics allows for greater sensitivity, accuracy and noise immunity compared to the control of the amplitude of geoelectric signals. The developed laboratory setup allows simulating various natural processes (changes in soil moisture, suffusion, karst dips, landslides, landslides, and others) and assessing their impact on the railway transport complex. The installation contains a model of the controlled object (a container with soil), generators of probing signals, a subsystem for recording signals in the environment, a subsystem for data processing. The proposed approach makes it possible to detect early geodynamic indicators of deformations of the railway trackbed.