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中文摘要：
岩溶地区运营公路隧道大多数存在水害问题，这些水害问题会对隧道的运营和结构安全性造成影响，严重的水害甚至会阻断交通，对衬砌结构造成永久性破坏。以京珠高速公路某隧道在特大暴雨的影响下出现了二衬混凝土掉块、边沟涌水涌泥和隧道渗漏水等水害为例，对岩溶地区运营公路隧道水害原因及防治措施进行了分析研究，可供同类工程参考和借鉴。
英文摘要：
Water calamities, which may cause damages to the operation and structural safety of tunnels, exist in the majority of operated expressway tunnels in the karst regions. Severe water calamities would even stop traffic and result in permanent damage to the lining structure. In this paper, taking water calamities including dropping pieces of the second lining, bursting water and mud in side ditches and leakage under torrential rainstorms at Dabaoshan Tunnel of Beijing-Zhuhai Expressway as an example, the causes and precautions for water calamities of operated expressway tunnels in the karst regions have been analyzed and studied, which could provide guides to similar projects in the future.
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