163 A New Model for Rockburst Prediction Based on Gaussian Process Available to Purchase

Rockburst is a geological disaster occurred usually in deep mines. Because of poor understanding of the mechanism and influence factors of rockbust, it is very difficult to give accurate prediction using conventional methods. A new model based on Gaussian process (GP), which is a probabilistic kernel machine leaning and has become a power tool for solving highly nonlinear problems, therefore, is proposed. At first, case histories of rockburst occurrence with the real records of rockburst intensity and influence factors of rockbust are collected and are taken as prior knowledge to be learned by GP binary classification machine learning. Maximum tangential stress, uniaxial compressive strength, tensile strength of rock and rockburst tendency index of rock, which can reflect the internal and external conditions of rockburst occurrence nicely, are suggested to be main influential factors of rockburst. Then, the nonlinear mapping relationship between rockburst intensity and its influence factors can be established easily by GP model. Finally, prediction for the novel conditions in deep mines can be obtained using the model. The new model is applied in prediction for rockburt intensity at practical projects in China, Norway and USSR. Results of case study show the model is feasible, effective and simple to implement for rockburst prediction.