盾构综合管廊区间联络通道应用研究

Research on Application of Interval Connecting Passage of Shield Utility Tunnel

引入了区间联络通道作为盾构综合管廊区间管线引出的解决办法,提出了盾构综合管廊设计新方案,在主要路口设置盾构工作井,在次要路口设置区间联络通道供管线引出,增加了盾构工作井布置间距,避免了埋地管线的重新敷设,减少了工程总造价。同时比选了冰冻法、机械法、加固法3种实施方案的优缺点和其在盾构综合管廊工程中的适用性,为类似工程提供了参考与借鉴。

The interval connecting passage is introduced as solution to lead out pipelines in utility tunnel. A new design scheme of utility tunnel is proposed: shield working shafts are set at the main intersection, interval connecting passages are set at the secondary intersection for pipelines to be led out, the distance between the adjacent shafts are increased, and the relaying buried pipelines are avoided so that the total project cost could be reduced. The advan-tages and disadvantages of freezing method, mechanical method and strengthening method and their applicability are compared. The scheme provide references for similar projects.