Introduction. During the construction of highways in rough terrain, situations of pruning of landslide-prone soil slopes often occur, which is taken into account when designing stable profiles of slopes, protective structures and planning works. But in the process of road operation for a long time, as a result of continued development of deformations and landslides, in the systems of slopes there is an accumulation of deformations and stresses, increased porosity and cracking, they become landslide again. Continuation of road operation in this case puts additional load on the slopes and can serve as a trigger effect to landslides. To avoid this, it is justified to take into account the dynamic actions of vehicles and monitor the slopes, which can be performed by geoacoustic or georadar surveillance, similar to geological methods of seismic exploration used in the search for minerals.
Problem Statement. Analysis of information sources to predict the destruction of soil slopes and slopes showed that the extraction and transportation of soil samples for laboratory instruments and subsequent installation in the working bodies are associated with the destruction of their natural state and to approximate the characteristics required for mathematical simulation. This can be eliminated by conducting field tests using non-destructive testing. Such means are the use of seismic, acoustic and electromagnetic radiation devices with the subsequent use of spectral diagnostic methods. This is caused by the problem of geodiagnostics of landslide-prone areas of natural slopes and foundations of structures in the mode of continuous or intermittent monitoring by these means to determine the hydrodynamic and mechanical characteristics of soils and prognostic tasks to prevent catastrophic events.
Purpose. To substantiate the use of modern methods of processing experimental information in geoacoustics problems, which allow to make precise measurements of the parameters of natural materials. At the same time it is possible to study the structure of such materials, to determine the relationships between micro- and macroscopic parameters.
Methods of research. Mathematical modeling of wave fields by solving equations of motion by the finite volume method, taking into account geoacoustic methods of observation.
Results. By spectral analysis of the results of the numerical experiment, the data obtained show that a given impulse load, which is concentrated near the application of the active load is transformed depending on the physical and geometric conditions of wave propagation, which allows to identify the location of zones of stability and determine the characteristics of soil slopes, and in the time plan ― to change these parameters.
Conclusion. As a result of numerical experiments, it is shown that changing the distance of the source of excitation of oscillations in the presence of the underlying layer significantly reduces the attenuation of the dynamic load. When considering a specific object through numerical experiments, it will be possible to obtain data to provide recommendations for the arrangement of the road at a safe distance from the slope or the design of protective hydraulic structures (retaining walls, drainage galleries, etc.).
