Role of Underground Structure Deformation Velocity in the Analysis of Blast-Resistant Structures

The strucural deformation velocity plays a significant role in the dynamic calculation of underground blastresistant stuctures. The motion differentiating equation of a structure system taking into account the role of deformation velocity of the structure will truthfully describe the actual situation of structural vibration. With the one-dimensional plane wave theory, the expression of load on the structural periphery is developed, and the generalized variation principle for the dynamic analysis of underground arched-bar structures is given. At the same time, the results of the numerical calculation are comparted.