武广高铁黄登仙隧道衬砌渗漏水原因分析及施工技术研*究

Cause analysis and construction technolog study of water-leakage of liner in Huangdengxian Tunnel

高铁隧道防水是武广高铁建设的重点工程之一。在武广高铁隧道渗漏水整治的工程过程中,通过定性分析黄登仙隧道渗漏水形成的3个原因,提出不同处理方案:混凝土表面湿渍及渗漏水区处理、施工缝渗漏水处理、轨道基础的施工及相应的新型材料,并总结工程过程管理时应注意的事项,以指导今后的设计和施工。在完成黄登仙隧道渗漏水整治的2 a后检查,该隧道渗漏水隐患得到了有效治理。

Waterproofing is an important project in Wuhan-Guangzhou high-speed railway construction.It must achieve rational first waterproof standard,and the secondary lining can＇t be permeable.During the processes of seepage remediation,three causes were analyzed which choose the seepage in Huangdengxian Tunnel,and proposed different measurements： wet concrete surface stains and seepage area treatment,construction joints seepage remedies,rail base construction and corresponding new material.Meanwhile,the notes were summarized during project management to guide the design and construction.Two years after the leakage remedy were finished in Huangdenyxian Tunnel,the leakage hazards were proved to be effectively controled.