Design of Municipal Tunnel for Public Utilities to Cross Urban River with Open Cut Method

摘要

On the basis of ground geology and hydrogeology of an urban river, a municipal tunnel in which public pipes and cables are placed is designed to cross the river by means of open cut method. The main structure of the municipal tunnel and its waterproof measures are both summarized in this paper. Reinforced concrete frame structure with one story and three box-shaped sections is used in the design of the municipal tunnel. Both self-waterproof structure and waterproof sheet are applied to prevent ground water from permeating into the subaqueous tunnel. The installation of public cables and pipes are still elucidated in the paper. The typical structure of the municipal tunnel can be a guiding reference for the design of other subaqueous tunnel to cross urban rivers under analogous conditions.