Ancillary strres for embankment cutoff and embankment cutoff using this strre

摘要

To provide an embankment cut-off auxiliary structure which is hard to roll even when it is thrown into a flow in a breakdown portion of a bank, improves the workability of the shutoff operation and shortens the working time, and Provide an embankment cutoff method.SOLUTION: The auxiliary structure 1A for shutting off the embankment which receives the shutoff member for closing the broken part of the bank and assists the closing operation, comprises a short leg portion 21 to be grounded to the water bottom and a long length A pair of anti-rolling members 2 joined to the leg portions 22 at a predetermined angle are connected by a transverse shaft member 3 having a predetermined length, and the long leg portions 22 are connected to the embankment cut-off auxiliary structure 1 As shown in FIG.(FIG.