| 简介 |
PROBLEM TO BE SOLVED : To provide a contact part structure between an underground structural member and an earth-retaining cut-off wall, in which shear force transfer members penetrate through a segment from the inside of a shield hole in a contact part between the shield hole having segments as a lining material and an earth-retaining cut-off wall constructed in contact with the segment of the shield hole and are protrusively provided in the earth-retaining cut-off wall smoothly and safely.
SOLUTION : In a contact part between a shield hole 1 having segments 3 each including a girder 3a, joint plates 3b, and longitudinal ribs 3c as a lining material and an earth-retaining cut-off wall 2 constructed in contact with the segment 3 of the shield hole 1, shear force transfer members 5 penetrate through the segment 3 from the inside of the shield hole 1 and are protrusively provided in the earth-retaining cut-off wall 2. The shear force transfer member 5 is formed from a threaded bolt and is screwed and fixed to a threaded sleeve 6 welded to the girder 3a, the joint plates 3b, or the longitudinal ribs 3c.
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