Overture: any way to bypass bugged doors?

[Robomook]

Yeah, I did try pretty rigorously, including trying to blast it open with a gas cannister and bashing it with various implements, but it won't move an inch.

There's also an invisible barrier in front of the gate, I have a theory that it's the physics box from a dead hound that's clipped through the ground - I remember the corpse of the first one I killed (as soon as I arrived in that area) got stuck in the gate after I dropped a broken cannister on it's head, so I'm thinking when the level re-loaded the physics engine glitched a bit and it got stuck underground, with it's physics box still interacting with the gate.

If that's the case I'll have to go much further back and re-play a good chunk of the game