Production method of the steel for the subterranean continual wall and the steel for the subterranean continual wall and the method of constructing the subterranean continual wall, and the subterranean continual wall

摘要

The steel for this subterranean continual wall (1) one feature has the hat section steel plank (2) and the H section steel (6), the size in the length direction of the aforementioned hat section steel plank (L1) compared to the size in the length direction of the H section steel (L2) is short, at the same time total length of the H section steel distribution facilities is done within size of the hat section steel plank, the rear end of the hat section steel plank (18) compared to the rear end of the H section steel (20) is located on advanced side. As for other feature of the steel for the subterranean continual wall, the position in the length direction of the rear end of the aforementioned hat section steel plank and the rear end of the aforementioned H section steel agrees, it is 35% or less of the total length to which the point of the hat section steel plank (19) compared to the point of the H section steel (21) is located on rear end side, alienation length with the point of the aforementioned hat section steel plank and the point of the H section steel (B), in the length direction of the steel for the subterranean continual wall. Production method of the steel for this subterranean continual wall locks the aforementioned hat section steel plank and the aforementioned H section steel mutually with welding. This subterranean continual wall is constructed, plural using the steel for the aforementioned subterranean continual wall. As for the method of constructing this subterranean continual wall, the steel for the aforementioned subterranean continual wall plural is used.