I'm having some difficulties understanding the construction
I couldn't find it as a single word, so I take it is constructed from
かける. My guess is that it's the stem form of
崩れる joined with
かける (equivalent to the て form to join to verbs), but I'm not sure.
崩れる means something like collapsed so I was thinking it referred to a collapsed gate. I don't know what
かける adds to this though...
Can someone shine some light on this?