Being the selection mannered null hat section lagging of the earth finishing blow wall, and the combination steel sheet-pile which are formed by the combination

摘要

Has a hat-shaped steel sheet pile, and H-section steel, said hat shaped steel sheet pile, and the web portion combination steel sheet pile of the present invention; flange portion of the pair provided at both ends of the web portion; said pair of the joint portions of the pair are formed at the ends of the pair of arms of the; the pair of arm portions are respectively provided at an end of the flange portion has, the H-shaped steel sheet piles, a central web portion ; flange portion of the second is provided at the other end of the central web portion; flange of the die 1 is provided at one end of the central web portion has, the flange portion of said second hat shaped steel is fixed to the outside of the web portion of the sheet pile, the minimum ratio of yield point σ _{yh /} σ _ys is the ratio of the minimum yield point σ _yh of the H-section steel, and the minimum yield point σ _ys of the hat shaped steel sheet pile, is 1.105 or more.