ひ押坑道の英語

粘土質地盤に対しては、圧密円筒１７の前半の円錐面部１８で、粘土を坑道の内周面側に押付け、坑道を広げて拡径を行うことができる。例文帳に追加

For clayey subsoil, clay is pressed against the inner peripheral surface of a headway by the conical face part 18 of the front half of the consolidating cylinder 17 to widen the headway to increase the diameter. - 特許庁

坑道掘削機本体１の前端部にベアリング１０を介して回転自在に支持された頭部掘削盤２の最先端部に回転自在に支持された複数の圧壊破砕刃３は立坑内の地山に最初に当接し、転動しながら岩盤表面を強く押圧して線状の圧壊破砕を生じさせ、小径の先導孔を形成する。例文帳に追加

A plurality of compressive breakage edges 3 rotatably supported at the foremost end of a head excavation disk 2 rotatably supported through a bearing 10 at the front end of a tunnel boring machine body 1 are at first brought into contact with natural ground 15 in a shaft 15 and strongly pressed on the bed rock surface while rolling to generated linear compressive breakage and form a small diameter leading hole. - 特許庁