遮しゃ水すい

noun, noun or participle which takes 'suru', transitive verb

water cutoff; seepage control; waterproofing

Technical term used in civil engineering and construction for blocking or controlling water flow, such as in dams, tunnels, or underground structures. Often used in compound nouns like 遮水壁 (cutoff wall) or 遮水工 (waterproofing work).

• ダムの遮しゃ水すい壁へきが漏ろう水すいを防ふせいでいる。

  The dam's cutoff wall prevents water leakage.

• トンネル工こう事じでは遮しゃ水すい対たい策さくが重じゅう要ようだ。

  Water seepage control measures are important in tunnel construction.