| 摘要 |
PURPOSE:To enable necessary component parts to be previously erected in a hollow unit, by a method wherein the cut-off hollow unit is set in an excavated groove, and wherein stabilizing liquid is discharged and the hollow unit is erected in the excavated groove, and wherein concrete is poured in the hollow unit. CONSTITUTION:After a groove 2 is filled up with the bentonite liquid mud 5 of stabilizing liquid, a cut-off hollow unit 6 is permitted to float on the surface of the bentonite liquid mud 5 in the groove 2, and is set. After that, the bentonite liquid mud 5 is discharged from a small groove 2a and at the same time, the hollow unit 6 is collectively erected, and in the hollow unit 6, concrete 15 is air-poured. Then, the hollow unit 6 is integrated with the concrete 15, and in ground 1, an underground continuous wall is directly constructed. As a result, previously on the external side surface of the hollow unit, work on the external water-proofing of high reliability can be executed.
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