| 摘要 |
PURPOSE:To shorten the period of construction by a method in which the lower part of an upper panel is shaped into a recessed form, while the upper part of a lower panel is shaped into a projected form and the lower part is shaped into a blade form, and both the upper and lower panels are connected with each other. CONSTITUTION:The lower part of a panel in which expanded glass, etc., is packed into the aperture of its double structure is shaped into a recessed form, and interlocking parts 1A are formed on both sides of the panel to form an upper panel 1. The upper part of a panel of the same type is shaped into a projected form, the lower part is shaped into a blade form, and interlocking parts 2A are formed on both sides of the panel to form a lower panel 2. Both the panels 1 and 2 are connected vertically and horizontally and penetrated into the ground.
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