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Wastewater flow transfer tunnel: design and construction

机译:废水输送隧道:设计与施工

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摘要

This paper discusses the design and construction of a 10.5 km long, segmentally lined, flow transfer tunnel. It covers the detailed lining and shaft designs, selection criteria for the tunnelling machines, shaft and tunnel construction methods, and specialist ground treatment. The paper discusses several construction problems encountered with shaft sinking and tunnelling, and describes how these were resolved. Particular note is made of caisson sinking of shafts and the design of the tunnel entry and exit portal eyes. Jet grouting in the varying ground strata around these portals and on other areas of the contract is considered.
机译:本文讨论了一条长10.5公里,分段衬砌的引水隧洞的设计和施工。它涵盖了详细的衬砌和竖井设计,隧道掘进机的选择标准,竖井和隧道的施工方法以及专门的地面处理。本文讨论了井下沉和隧道施工中遇到的几个施工问题,并描述了如何解决这些问题。特别要注意的是竖井的沉箱沉没以及隧道入口和出口门眼的设计。考虑在这些入口周围以及合同其他区域的不同地层中进行喷射注浆。

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