Study on the critical stress state of brittle failure of rock based on renormalization group theory

Rock mass usually is composed of joints and rock bridges,many failure cases of rock mass engineering were induced by the sudden brittle failure of rock bridges.In this paper,the percolation model of brittle failure was established firstly and supposing the strength distribution of rock obeyed weibull function,then the percolation thresholds of one-dimension and two-dimension models were computed by the renormalization group...