哈大铁路客运专线隧道防排水设计

Waterproof and Drainage Technology of Tunnels on Harbin-Dalian Passenger Dedicated Line

我国山岭隧道大多按照半包式建造,近年来这种排水型的半包式隧道在生态环境方面的弊端不断显现;随着我国对环境问题重视的提高,从保护环境的长远考虑,这几年逐步在部分地下水环境敏感或地面有重要建筑物不能因隧道长期排水引起沉降的地段进行了全包防水的应用。通过介绍半包和全包2种防水类型在哈大铁路客运专线的运用,并对这2种防水方式进行比较分析,为山岭隧道进行"全封闭不排水"设计提供有益的借鉴。

Most of the mountain tunnels in China have been built using half-surrounded construction method.In recent years,the destructive effects of these tunnels on ecological environment become more and more serious.With growing focuses on environmental issues and long term consideration of environmental protection,the full-surrounded construction is applied in some places,where the groundwater is sensitive or where settlement occurs under important buildings due to long time inefficient drainage.This paper introduces the application of half and full surrounded tunnels on Harbin-Dalian Passenger Dedicated Line and analyzes the comparison between the two patterns,which may provide some useful references for the design of mountain tunnels with 'full-sealing and drainage free'.