Driftwood trap and construction method of driftwood trap and installation structure of driftwood trap

摘要

PROBLEM TO BE SOLVED: To suppress the amount of concrete to be used by implementing the structure on the upstream side of the dam with the structure separated from the dam and the structure (the bases of adjacent driftwood traps) separated from each other. (EN) Provided are a driftwood trap, a construction method of the driftwood trap, and an installation structure for the driftwood trap, which can be installed in a necessary place in an optimum arrangement and have excellent workability, economy, and flexibility. SOLUTION: The driftwood catching body 1 is installed on the upstream side of a sabo dam, and the driftwood catching body 1 is filled in the closed cross section forming member 2 forming a closed cross section space and the closed cross section space. It comprises a filling material 3, a sheath pipe 4 provided in the closed cross-section space and fixed in the filling material 3, and a driftwood trapping pillar member 5 inserted into the sheath pipe 4 and standing up. The closed cross-section forming member 2 may be configured by connecting a plurality of segments 12. The driftwood trapping column member 5 is removably inserted into the sheath tube. [Selection diagram] Figure 2