Tsunami inundation flow reproducible way and tsunami flood flow experimental apparatus

摘要

PROBLEM TO BE SOLVED: To improve evaluation accuracy in Tsunami bearing force of a land structure modeled by accurately reproducing a time series change in an actual Tsunami.SOLUTION: A Tsunami flooding flow reproduction method uses an experimental device 10 having: a head tank 1; a pipe 2 with a valve which has a valve 5 and whose upstream end communicates with the head tank 1; a rectangular pipe conduit 3 whose upstream end is continuous to the downstream end of the pipe 2 with the valve; a testing water channel 4 whose upstream end is continuous to the downstream end of the rectangular pipe conduit 3 and which has a gradient corresponding to a limit gradient in an equal flow; a bottom part discharge type gate 6 provided between the downstream end of the rectangular pipe conduit 3 and the upstream end of the testing water channel 4 and movable in the vertical direction from a state of allowing the lower end to abut on a water channel floor; and an overflow type gate 7 provided on the downstream end of the testing water channel 4 and movable in the vertical direction from a state of not pushing out the upper end from the water channel floor.