Title:
Z-SHAPED STEEL SHEET PILE
Document Type and Number:
WIPO Patent Application WO/2011/071186
Kind Code:
A1
Abstract:
Provided is a Z-shaped steel sheet pile such that economic efficiency, ease of insertion, and soundness are all optimized. The aforementioned Z-shaped steel sheet pile consists of a web, flanges formed at both ends thereof, and joints provided at the ends of the flanges, and is characterized in that, when a steel pile wall is formed, the relationship among values I (cm4/m), W (kg/m2), R, and θ (O) are set to satisfy either of the following equation groups (A) and (B), where I (cm4/m) is the moment of inertia of the cross section, per meter of wall width, W (kg/m2) is the weight per unit wall area, R is the insertion resistance, and θ (O) is the web angle.
Equation group (A)
(W/I) × R ≤ 0.004, and
2.65 × 10-4 × I + 22 ≤ θ ≤ 2.80 × 10-4 × I + 48 (30,000 ≤ I < 80,000),
2.65 × 10-4 × I + 22 ≤ θ ≤ 70 (80,000 ≤ I < 180,000).
Equation group (B)
0.004 < (W/I) × R ≤ 0.006, and
2.80 × 10-4 × I + 44.6 <θ ≤ 80 (30,000 ≤ I <80,000),
67 <θ ≤80 (80,000 ≤ I <200,000).
Inventors:
USAMI, Shunsuke (JFE STEEL CORPORATION 2-3, Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
宇佐美俊輔 (〒11 東京都千代田区内幸町二丁目２番３号ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
KOHNO, Kenji (JFE STEEL CORPORATION 2-3, Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
宇佐美俊輔 (〒11 東京都千代田区内幸町二丁目２番３号ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
KOHNO, Kenji (JFE STEEL CORPORATION 2-3, Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
Application Number:
JP2010/072598
Publication Date:
June 16, 2011
Filing Date:
December 09, 2010
Export Citation:
Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwaicho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
USAMI, Shunsuke (JFE STEEL CORPORATION 2-3, Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
宇佐美俊輔 (〒11 東京都千代田区内幸町二丁目２番３号ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
USAMI, Shunsuke (JFE STEEL CORPORATION 2-3, Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
宇佐美俊輔 (〒11 東京都千代田区内幸町二丁目２番３号ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
International Classes:
E02D5/04
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFE Techno-Research Corporation 7th Floor, Yanagiya Building, 1-10, Nihonbashi-2 Chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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