| abstract |
A steel pipe sheet pile has higher strength than a conventional steel pipe sheet pile. As a result, a sealed space exhibits a water stopping effect, water pollution caused by a water stopping work is reduced, and an economic effect is also increased. By using such a steel pipe sheet pile as a support unit member, the self-sustainability is extremely high, and as a result, a cut beam or the like can be omitted. As a shoring unit member, steel pipes (2) arranged in parallel are integrally connected by a connecting member (H steel (4)) having an H-shaped cross section in which an edge is joined to a peripheral surface of each steel pipe (2). And a steel pipe sheet pile 1 of a double type in which a joint 3 is provided on a steel pipe 2, and when the supporting unit members are connected side by side by connecting the joints together to form a retaining wall, a connecting material (H A vertical support unit member is interposed at appropriate intervals so that the steel 4 and the steel pipe 2 ahead thereof are disposed behind the retaining wall. [Selection diagram] Fig. 1 |