REINFORCEMENT STRUCTURE OF MOUNTAIN RETENTION WALL

To provide a reinforcement structure etc. which can suitably reinforce a mountain retention wall.SOLUTION: A reinforcement structure 1 of a mountain retention wall 2 has head connection beams 11, and reaction piles 12. The head connection beam 11 is arranged outside one side of a plane of the mountain retention wall 2, is connected to the apex of the one side of the mountain retention wall 2, and is provided such that an end thereof protrudes from the end of the one side of the mountain retention wall 2. The reaction pile 12 is provided in a ground 3 on the side of an excavation range 30 on the end of the head connection beam 11, and is brought into contact with the end of the head connection beam 11. The head connection beam 11 is formed of cast-in-place concrete.SELECTED DRAWING: Figure 1 【課題】山留壁を好適に補強できる補強構造等を提供する。【解決手段】山留壁２の補強構造１は、頭繋ぎ梁１１と反力杭１２を有する。頭繋ぎ梁１１は、山留壁２の平面の一辺の外側に配置され、山留壁２の当該一辺の頂部に連結され、且つ端部が山留壁２の当該一辺の端部から張り出すように設けられる。反力杭１２は、頭繋ぎ梁１１の端部の掘削範囲３０側の地盤３に設けられ、頭繋ぎ梁１１の端部に当接する。頭繋ぎ梁１１は、現場打ちのコンクリートによって形成される。【選択図】図１