| 摘要 |
A steel sheet pile for which a workability evaluation coefficient (C) and an economic evaluation coefficient (E) expressed by formulas (18, 19) below satisfy any of the following conditions (24 - 28) below when the unit weight of the soil of the target foundation (γ) is 1.8×10-8 kN/mm3, the coefficient of friction (μ) between the soil and the steel sheet pile is tan 15°, the Rankine passive earth pressure coefficient (ν) is tan2(45°+(√15×N+15)/2), the N value is 20, and the installation depth (Zν) is 15000 mm. C=Fclosure/A (18) E=A0/Ze (19) 0.12 ≤ C ≤ 0.66 and -0.0225×C+0.066 ≤ E ≤ 0.08 (24) 0.66 <C ≤ 0.85 and -0.0225 × C+0.066 ≤ E ≤ -0.0306×C+0.0997 (25) 0.85 < C ≤ 0.89 and 0.0469 ≤ E ≤ -0.0306×C+0.0997 (26) 0.89 < C ≤ 1.04 and 0.0469 ≤ E ≤ 0.0077×C+0.0793 (27) 1.04 < C ≤ 1.20 and 0.0469 ≤ E ≤ 0.0795 (28) |
| 申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
SUZUKI, TAKASHI;NAKAYAMA, HIROAKI;KATO, ATSUSHI;HARATA, NORIYOSHI;TANAKA, RYUTA;TODA, KAZUHIDE;HAYASHI, SHINYA;YAMASHITA, HIROSHI |
