Engineering Analysis of Stress-Strain State of Rock Mass Around Dual-Use Underground Structures Under Dynamic Loads
摘要
The effect of vibrations initiated by the explosion on the surface is considered, and the algorithm for engineering analysis of the stress-strain state of the rock layer near the contour of the underground structure is proposed. The dependences of compressive dynamic stresses and relative deformations in granite, siltstone, and sandstone near the structure contour on its burial depth and the explosive charge mass are presented. Engineering analysis of the example of the construction of metro in Dnipro has shown that in such conditions it is advisable to use a protective layer of polymeric material in thestructure roof to protect the tunnels.