there are 2 ways, as far as i know
the one i used: crouch and push the cart behind .. that requires some patience, but it works .. then push the other
other, more 'normal', way
when you enter the room and walk straight ahead, you'll encounter a barrier out of crates and a door behind .. there's no way you could jump over that barrier .. but u can try to walk through one of those machines ..
there should be one without a cart underneath its .. pipe