| abstract |
[PROBLEMS] To provide a water-stop joint structure capable of maintaining high water-stopping not only during construction but also after construction for a joint portion such as a steel plate cell and an arc, or a steel pipe cell and a steel pipe sheet pile, and a construction method therefor. . After a female joint 3 and a male joint 4 are engaged, a filling material 7 such as sand is filled in a region surrounded by a steel plate cell 1 and an arc 2. When the arc 2 receives the earth pressure of the filling material 7, the head 4 a of the male joint 4 is drawn toward the slit 3 b side of the female joint 3, and the inner side of the slit 3 b of the female joint 3 and the head 4 a of the male joint 4. Is in close contact. In addition, the elastic water stop member 5 provided outside the slit 3 b of the female joint 3 is in close contact with the surface of the male joint 3. In this state, water and earth and sand in the hollow portion 3a of the female joint 3 are discharged and filled with a curable filler 3 such as mortar. After the filling material 3 is cured, the movement of the male joint 4 in the joint portion is restricted, and high water-stopping performance is maintained. [Selection] Figure 1 |