| 摘要 |
PURPOSE:To eliminate damage to the cross section of top plate by shortening the setting depth of sheathing materials by a method in which a coping stone serving as guide wall in combination is connected to the top of a sheathing material, the inside of the sheathing material is excavated for an underground continuous wall to the lower end of the top plate, and the top plate is constructed on the head. CONSTITUTION:The ground on both sides of a place where an underground continuous wall is to be constructed is improved while mixing it with a hardener, and sheathing materials 8, e.g., H-steel, etc., are vertically set. Concrete for guide wall 6 in an underground continuous wall construction method is placed up to the height of the excavated face of a top plate 2 in such a way as to bury its head. A coping stone 4 serving as guide wall 6 is provided for the head of the material 3 for connecting and underground continuous wall 1 is constructed to the height of the top plate 2 until a given depth is reached inside of the material 3. The ground surrounded by the material 3 is excavated to the lower end of the top plate, and the top plate 2 is constructed on the wall 1. The needs for shoring strut construction can be eliminated during the excavation of top plate portion, and the construction work can thus be economized.
|
