| 摘要 |
PURPOSE:To raise the bearing force of an underground wall by a method in which partition plates are integrally connected to both ends of a reinforcing bar cage, the lower end of the structural core is connected to the inside of the upper end of the partition plate, and then are set in an excavated trench and concrete is placed. CONSTITUTION:A reinforcing bar cage 12 to be set in an excavated trench 11 is integrated with partition plates 13 and structural core columns 14 on the ground. The cage 12 is set in the trench 11 and concrete is placed through a tremie tube into the trench 11 after verifying the dimensional accuracy of the plates 13. Since bad-quality concrete containing mud water goes up without staying on the upper end of the columns 14, a continuous wall unit 16 integrated with the columns 14 can be constructed. The dimensional accuracy of the columns 14 can thus be automatically secured by ensuring the accuracy of the sizes of the columns 14.
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