Application of Numerical Simulation in Reinforcement of Caverns Underground by External Cross-anchoring

摘要

In this paper, the responses of cavern underground reinforced by external cross-anchoring under blast loading were simulated by three-dimensional computational model made in software FLAC3D. It compared and supplementary analyzed the calculated displacement curves, the nephograms of maximum principal stress and destruction of cavern with that of model test, and analyzed the effect and mechanism of reinforced cable in this way comprehensively from deformation and destruction of surrounding rock outside, dynamic strain of cavern, energy absorption by anchor and energy consumption transferred through stress etc.