Striking joint method of vertical joints in underground continuous wall

摘要

PURPOSE: To eliminate a troublesome work for setups and changeover and prevent concrete from creeping around a partition board, and reduce the resistance to pull-out of the partition board. ;CONSTITUTION: A partition board 104, which is installed into a joint opening of a box-shaped joint 103 and closes the opening, is arranged to set back so as to provide a cutting allowance. A seal material 105, which is placed in contact with the end of a groove hole 101 of a preceding panel 10, is preliminarily molded in one piece on the lower part of the tip face of partition board 104. After the partition board 104 is placed in position into the box joint 103, crushed stones are filled up in a set-back space formed between the top of the seal material 105 and the upper part of the tip face of the partition board 104 and the end of the groove hole 101. And then, concrete C is placed in the preceding panel 10.;COPYRIGHT: (C)1996,JPO