立ち塞る

たちふさがる【立ち塞る】

stand in sb's way; block [bar] sb's way; step in 《between a person and a door》; confront sb. [⇒たちはだかる]

●入口に立ちふさがる block (the way to) the door.

●数々の難問が行く手に立ちふさがっていた. Many thorny problems lay across the path ahead of us.