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TUNNEL CONSTRUCTION METHOD AND DISPLACEMENT MEASURING DEVICE
TUNNEL CONSTRUCTION METHOD AND DISPLACEMENT MEASURING DEVICE
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机译:隧道施工方法及位移量测装置
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摘要
PROBLEM TO BE SOLVED: To provide a tunnel construction method which can construct a tunnel at high quality by properly grasping the displacement of a rock mass, and a displacement measuring device.SOLUTION: A tunnel construction method comprises: an upper-half excavation process for excavating a tunnel upper half 11; a measuring device installation process for installing a displacement measuring device 6 at a bottom of a tunnel 1 from the tunnel upper half 11; a lower half excavation process for excavating a tunnel lower half 12 while confirming rock mass displacement by the displacement measuring device 6; an invert excavation process for excavating an invert part 13 while confirming the rock mass displacement by the displacement measuring device 6; and an invert placing process for placing invert concrete into the invert part 13.SELECTED DRAWING: Figure 2
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