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Abstract As a powerful and complicated defensive system in the organism，immune system is provided with advantages of the self-adaptability and it can be used to resolve different disturbances and uncertain questions. Based on the Pearl curve，the adaptive immune algorithm that is proposed for the tunnel engineering prediction is put forward. The Pearl curve could describe the convergence of the tunnel surrounding rockmass accurately，and can predict the nonlinear deformation tendency by the immune system. Taking each factor that will influence the stability of the tunnel surrounding rockmass as antigen to settle it effectively，through the increase of across and mutation probability，the adaptive of immune system could be realized. The distributing rule and dynamic stability could guarantee the system stability and the whole optimization. From this point，it can enable the whole system to be a self-adaptive robustness system that can perfect itself with changing conditions. This method has been applied to the engineering of Yunling tunnel；the prediction of the uncertain system predication in the complex geological conditions could be realized. Some problems in the traditional methods have been solved with this method in intelligent calculation for tunnels. The research results show that the adaptive immune algorithm of the Pearl curve has superiority and effectiveness for intellectuality prediction of tunnel engineering
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Received: 17 April 2007
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