| 摘要 |
PURPOSE:To perform sheathing work more simply and at lower cost than the other methods by a method in which steel sheet piles are driven in a circular from at given intervals, stay steel sheet piles are connectedly driven from the crossing points of circular arcs, anchors are provided on the final end, and the front of the circular steel sheet piles is excavated. CONSTITUTION:Steel sheet piles 1 for sheathing are connectedly driven in a circular form at given intervals in such a way as to extend the sheet piles toward the excavation side. Steel sheet piles 1 as stay steel piles 2 are driven connectedly from crossing points of the circular arcs. Anchor metals 3 are attached to the final ends of the stay steel sheet piles 2 and driven to the back of the active degradation angle, and then excavation is made to given subsoil. The load of the sheathing is offset by the tensile force of the steel sheet piles, and the tensile strength can be increased by the friction force of the surrounding ground. |
