Mathematical Model of Seismoexplosion in Tunnel Surrounding

Abstract

The construction of objects of critical infrastructures such as a new roads, utility tunnels, communication networks, underground parks and other structures is associated by the way with generation of vibrations in the vicinity of the underground structures, and not only human lives can be lost but also extensive material damage can be expected due to technological and natural hazards based on vibrations. This paper presents the general governing equations for coupled thermo-hydromechanical process in the tunnel surrounds. Modeling and analysis of laminated composite cylinder applied for the objective analysis of shock wave propagation in the soils and possibilities to estimates of the tunnel structure damage.

General Conditions for Estimation of Stress-Strain State of the Rock Massif for Objects of Civilian Potection

“…For reasons of convenience, the K 1 values are shown for lifetimes of 5, 10 and 100 years. When solving problems connected with rock pressures [9], with the exception of the long-term strength coefficient, one has to consider structural characteristics (intensity of cracking, strength of structural blocks, different strength of layers, inclination angles of layer cracks), generally expressed by the structural weakening coefficient K 1 . The expected rock resistance to pressure is calculated using the formula…”