To prevent water leakage in advance in a cutting joint.
In the connection method of a continuous underground wall, at first, a cut-off plate is vertically fitted in advance at the side face of the adjacent panel of a cage (step 101). Next, the cage to which the cut-off plate is fitted is hung in an excavated hole in the prior panel zone (step 102). Thereafter, concrete is placed in the excavated hole to construct the prior panel (step 102). Then, the surface of the end part of the prior panel is cut while excavating the ground of the posterior panel zone adjacent to the prior panel by a rotary cutter. In this time, the cut-off plate fitted to the cage of the prior panel is left and only the part spread to both sides thereof is cut (step 104). When the prior panel has been completely cut, the cage is finally hung in the excavated hole in the posterior panel zone and concrete is placed to complete the posterior panel (step 105).
Takizawa, Hidetoshi
Furukawa, Junichi
Ito, Hitoshi
Nakamura, Toshio
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