以宜万铁路野三关及大支坪隧道为工程背景，阐述了高风险岩溶隧道采取的综合地质预报方案，结合工程实例介绍了实际预报手段和数据处理方法，成功预报了大型断层，有力指导了隧道施工。

Taking the construction of Yesanguan tunnel and Dazhiping tunnel on Yi-Wan railway as case histories, the paper expatiates on the comprehensive geology prediction program adopted for the karst tunnels with high risks. On basis of the case histories, the paper presents the geology prediction methods and the data processing methods actually adopted during the tunnel construction. By means of the geology prediction technology presented, the largescale faults are successfully predicted and importance guidance is provided for the tunnel construction.