随着城市经济的不断发展,城市的基础设施不断地完善,然而城市内涝问题越来越突出,且旧城区的排涝能力远远不能满足现状或远期的要求,另外,城市地面可利用空间越来越小,地下中浅层空间大部分被各种管线、地铁占用。深层排水隧洞充分利用了深层地下空间,能有效解决城市内涝问题。充分查明深层隧洞的工程地质条件及问题,是一项基础而重要的工作。 With the continuous development of urban economy, the infrastructure of the city is constantly improving. However, the problem of waterlogging in cities is becoming more and more prominent. The ability of water drainage in old urban areas can not meet the status quo or long-term demands. In addition, To the smaller, most of the underground shallow space by a variety of pipelines, subway occupied. Deep drainage tunnel full use of deep underground space, can effectively solve the problem of urban waterlogging. To fully identify the engineering geological conditions and problems of deep tunnels is a fundamental and important task.