首页> 外文会议>Rapid Excavation and Tunneling Conference 2015 proceedings >DESIGN OF THE HEADRACE TUNNEL SEGMENTAL LINING FOR THE KISHANGANGA HYDROELECTRIC PROJECT
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DESIGN OF THE HEADRACE TUNNEL SEGMENTAL LINING FOR THE KISHANGANGA HYDROELECTRIC PROJECT

机译:基桑加加水电站顶管隧道分段衬砌设计。

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This paper describes the segmental lining design for the 15km long, 1400 m deeprnTBM tunnel constructed as part of the headrace tunnel for the 330MW KishangangarnHydroelectric Project in India (Figure 1). The double-shield TBM erected a 5.2 m diameter,rn350 mm thick hexagonal precast concrete segmental lining with concave-convexrnradial joints. Challenges for severe loading and joint geometry selection are discussed.rnCritical squeezing conditions, anticipated in particular areas of the tunnel, requiredrna risk management approach to design and construction with contingency proceduresrnand criteria developed to allow the risks to the TBM and the lining to be managed effectively.rnThe tunnel, completed in May 2014, represents the first segmentally lined TBMrntunnel to be successfully constructed in the Himalaya.
机译:本文介绍了15公里长,1400 m深的TBM隧道的分段衬砌设计,该隧道是印度330MW Kishangangarn水电项目引水隧洞的一部分(图1)。双层盾构隧道掘进机竖立了直径5.2 m,厚度为350mm的六角形预制混凝土分段衬砌,并带有凹凸径向缝。讨论了严峻荷载和接头几何形状选择所面临的挑战。rn在隧道的特定区域中预期的挤压条件,具有应急程序的设计和施工所需的风险管理方法rn和制定标准以有效管理对TBM和衬砌的风险.rn该隧道于2014年5月完工,是喜马拉雅成功建造的第一条分段衬砌TBMrn隧道。

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