| 摘要 |
PURPOSE:To enhance water-stopping property of tight joints by a method in which underground continuous walls are connected while making up a post tension structure across joints and a prestress is introduced. CONSTITUTION:A notch 5 and a fixing hole 6 which connect sheaths 8 are formed in the end 4 on joint side. A sheath 8 is set through the hole 6 on the end 4 on joint side and concrete is placed to obtain a preceding wall 1 having a post tension structure. A tension member is inserted into the wall 1 and a prestress is introduced. Afterwards, the tension member is fixed. An underground continuous wall of a simple structure having highly integrated joint and high water-stopping property can thus be constructed.
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