| 摘要 |
PURPOSE: A shotcrete-lining device is provided to improve structural stability without a separate lining form and to reduce an excavation sectional area. CONSTITUTION: The shotcrete-lining device comprises primary shotcrete(1) placed on an excavated tunnel face to the appointed thickness, secondary shotcrete(2) placed for reinforcement to the appointed thickness after placing the primary shotcrete(1), an induction drainpipe installed on the lower part of the secondary shotcrete(2) to prevent a water leakage caused by a crack of bedrock, woven fabrics installed to a contact part of the induction drainpipe and the secondary shotcrete(2) to prevent a leakage of water from flowing in the induction drainpipe, a mesh bar(5) installed to the lower part of the secondary shotcrete(2), high-strength shotcrete(6) placed to the appointed thickness to subside the induction drainpipe and the mesh bar(5), and a decorative built-up panel(7) installed on the lower part of the high-strength shotcrete(6).
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