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REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD OF EXISTING STEEL SHEET PILE WALL
PROBLEM TO BE SOLVED: To provide a reinforcement structure and a reinforcement method of an existing steel sheet pile wall, which can be constructed without removing a short strut structure even if an existing wall is a short strut type revetment, and avoid river-width reduction by suppressing extension toward waterside and requires no ground improvement.SOLUTION: An existing steel sheet pile wall reinforcement structure 1 comprises: a reinforcement member 5, which is formed of an U-shaped steel sheet pile or a hat-shaped steel sheet pile and has an irregular part that is alternately connected to a wall surface and a head part that is horizontally supported by a short strut structure and is installed in lengthwise direction by being butted against a surface of a concavity of the existing steel sheet pile wall 3; a lower short strut structure 7, which integrally supports lower parts of the reinforcement member 5 and the existing steel sheet pile wall 3; and an upper short strut structure 9, which is constructed on an upper end of the reinforcement member 5 and integrally supports the upper end of the reinforcement member 5 and an upper part of the existing steel sheet pile wall 3. The lower short strut structure 7 and the upper short strut structure 9 have a wale material 15 and a short strut material 17 that horizontally supports the wale material 15.SELECTED DRAWING: Figure 1
【課題】既設壁が切梁式護岸の場合においても、切梁構造の撤去なしで施工でき、水際側への張り出しを抑えて川幅の縮小を避けることができ、さらには地盤改良などが不要な既設鋼矢板壁の補強構造及び補強方法を提供する。【解決手段】既設鋼矢板壁の補強構造１は、Ｕ形鋼矢板もしくはハット形鋼矢板で構成され、壁面に凹凸部が交互に連続し、その頭部付近において切梁構造によって水平支持され、既設鋼矢板壁３の凹部の表面に当接させて縦方向に設置された補強部材５と、補強部材５の下部と既設鋼矢板壁３の下部を一体的に支持する下部切梁構造７と、補強部材５の上端部に構築されて補強部材５の上端部と既設鋼矢板壁３の上部を一体的に支持する上部切梁構造９とを備え、下部切梁構造７と上部切梁構造９は腹起し材１５と腹起し材１５を水平支持する切梁材１７を備えてなるものである。【選択図】図１
REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD OF EXISTING STEEL SHEET PILE WALL
PROBLEM TO BE SOLVED: To provide a reinforcement structure and a reinforcement method of an existing steel sheet pile wall, which can be constructed without removing a short strut structure even if an existing wall is a short strut type revetment, and avoid river-width reduction by suppressing extension toward waterside and requires no ground improvement.SOLUTION: An existing steel sheet pile wall reinforcement structure 1 comprises: a reinforcement member 5, which is formed of an U-shaped steel sheet pile or a hat-shaped steel sheet pile and has an irregular part that is alternately connected to a wall surface and a head part that is horizontally supported by a short strut structure and is installed in lengthwise direction by being butted against a surface of a concavity of the existing steel sheet pile wall 3; a lower short strut structure 7, which integrally supports lower parts of the reinforcement member 5 and the existing steel sheet pile wall 3; and an upper short strut structure 9, which is constructed on an upper end of the reinforcement member 5 and integrally supports the upper end of the reinforcement member 5 and an upper part of the existing steel sheet pile wall 3. The lower short strut structure 7 and the upper short strut structure 9 have a wale material 15 and a short strut material 17 that horizontally supports the wale material 15.SELECTED DRAWING: Figure 1
【課題】既設壁が切梁式護岸の場合においても、切梁構造の撤去なしで施工でき、水際側への張り出しを抑えて川幅の縮小を避けることができ、さらには地盤改良などが不要な既設鋼矢板壁の補強構造及び補強方法を提供する。【解決手段】既設鋼矢板壁の補強構造１は、Ｕ形鋼矢板もしくはハット形鋼矢板で構成され、壁面に凹凸部が交互に連続し、その頭部付近において切梁構造によって水平支持され、既設鋼矢板壁３の凹部の表面に当接させて縦方向に設置された補強部材５と、補強部材５の下部と既設鋼矢板壁３の下部を一体的に支持する下部切梁構造７と、補強部材５の上端部に構築されて補強部材５の上端部と既設鋼矢板壁３の上部を一体的に支持する上部切梁構造９とを備え、下部切梁構造７と上部切梁構造９は腹起し材１５と腹起し材１５を水平支持する切梁材１７を備えてなるものである。【選択図】図１
REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD OF EXISTING STEEL SHEET PILE WALL
既設鋼矢板壁の補強構造及び補強方法
ONDA KUNIHIKO (author)
2017-09-28
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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