YI Da, LIU Jie-rong, GE Xiu-run. Research on relationship between confining pressure, peak strength and strain in triaxial compression with improved PSO-based ANN[J]. 2007, 28(12).
YI Da, LIU Jie-rong, GE Xiu-run. Research on relationship between confining pressure, peak strength and strain in triaxial compression with improved PSO-based ANN[J]. 2007, 28(12).DOI:
The peak strengths and corresponding strains under different confining pressures are important controlling data of stress-strain curve in rock triaxial compression; and the values of peak strength and corresponding strain will usually increase if the confining pressure is improved. The results of tests show that the relationship between the peak strength
corresponding strain and the confining pressure is nonlinear.The particle swarm optimization (PSO) based ANN
which is improved with simulated annealing technique
is applied to establishing the relationship between the peak strength
corresponding strain and the confining pressure. An example is studied; the results show that the proposed method is feasible.