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STEEL LATTICE GIRDER FOR SUPPORTING TUNNEL EXCAVATION SURFACE THAT MINIMIZES THE OCCURRENCE OF SHOTCRETE VOIDS AND TUNNEL CONSTRUCTION METHOD USING THE SAME
STEEL LATTICE GIRDER FOR SUPPORTING TUNNEL EXCAVATION SURFACE THAT MINIMIZES THE OCCURRENCE OF SHOTCRETE VOIDS AND TUNNEL CONSTRUCTION METHOD USING THE SAME
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机译：用于支撑隧道挖掘表面的钢晶格梁可最大限度地减少使用相同的喷射空隙和隧道施工方法的发生
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摘要
The present invention relates to a steel support material for supporting a tunnel excavation surface and a tunnel construction method using the same, and it is possible to minimize the problem leading to structural defects due to the occurrence of voids when casting shotcrete while the steel support material is installed on the tunnel excavation surface. will be. The present invention, a square tube installed transversely along the tunnel excavation surface; And it is bonded to the outer surface of the square tube and formed convexly to the upper side of the square tube, so that the tunnel excavation surface and the square tube are separated from each other while contacting the tunnel excavation surface, so that the shotcrete is precisely poured without voids on the tunnel excavation surface. It characterized in that it comprises a; separating member to induce to be.
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