従来のいわゆる逆巻き工法に改良を加えることで、側壁の打ち継目に施工不良が生じ易いという課題を解消でき、工期を長期化させることのない地下構造物の構築方法を提供すること。例文帳に追加

To provide a construction method of an underground structure capable of solving the problem that a construction failure tends to occur at the placing joint of a side wall by improving a conventionally so-called inverted lining method, thereby preventing the extension of the construction period. - 特許庁

複数の鋼製セグメント３を連結して中空筒構造体１を構成し、地下に沈設し、底部にコンクリート３１を打設し養生して底版３３を形成する際に、コンクリートとの継目の強度が弱く、いわゆる押し抜きと呼ばれる破壊現象が生じてしまうのを防止する。例文帳に追加

To prevent a breaking phenomenon so-called punching due to poor strength of the joint between a bottom plate and concrete when a plurality of steel segments are to be interconnected to form a hollow cylinder structure and the structure is to be sunk into the ground with concrete placed on its bottom and cured to form the bottom plate. - 特許庁