在岩溶地区修建隧道，溶洞将引起隧道围岩的变形、开裂和失稳，常常诱发隧道突水突泥灾害。从力学角度对岩溶隧道突水突泥机理研究对隧道突水突泥灾害及时预报和有效治理具有重要意义。通过岩石破裂过程分析程序（RFPA），用数值模拟方法对隧道施工诱发隐伏有压溶洞破裂突水过程中的应力场、位移场和声发射等特征进行了系统研究，研究结果加深了对有压溶洞随着压力增加引起隧道突水过程机理的理解，为该类型溶洞的预报和治理提供了参考依据。

Water inrush is often encountered during tunnel excavation in karst region, and it will cause the deformation and failure of surrounding rock. So it is of important significance to study the mechanism of water inrush for the prevention of Karst disasters. In this paper, the characters of stress distribution、displacement field and acoustic emission(AE) during the process of water inrush and surrounding rock failure were studied by using RFPA2D (Rock Failure Process Analysis ) software, developed by Center for Rockburst and Induced Seismisity Research of Northeastern University. The results deepen the understanding of the mechanism of water flush and surrounding rock failure caused by gradually increasing hydraulic stress in Karst caves, and it can provide reliable reference for prevention of Karst disasters.