ESTIMATION OF SEISMIC VIBRATIONS INFLUENCE ON ROCK MASS ON THE UPPER AND LOWER PARTS OF THE 1751 KM SLOPE IN BIYANKA–SIMSKAYA TRANSHUMANCE

Abstract

The article presents the results of the research work on the estimation of the effects of seismic vibrations from blasting operations on the rock massif in the Biyankovsky crushed stone quarry and from the passing railway trains. The fractured structure of the mountain massif has been studied, the stability of the rock massifs in the boundaries of the mountain slopes adjoining the railway and the career of the Biyankovsky gravel plant at the Biyanka-Simskaya transhumance has been estimated. The transfer of the elements of occurrence of the main systems of cracks in the plan of the surveyed area was
made. The beginning of work is connected with the accident that occurred in the summer of 2017, a result of it two wagons were derailed. A technique for estimating the seismic effect from blasting operations and from passing trains on the massif has been described. These measures were taken to prevent the removal of rock fragments on the railway tracks. When carrying out instrumental measurements of the actual velocities of oscillations in rock-fall areas, it was established that the recorded seismic oscillations were to be insignificant and did not have a harmful effect on the rock massif stability. The cause for the rock mass falling on the railway tracks were the geological features of the rock massif. Recommendations are given to prevent the falling of rock fragments on the railway tracks.