The hand is exactly as i`ll say here. 

My stack = 189250 blind 2/4k (dont know the antes) 

I opened 3 times in a row for pure steal on HJ,CO,BU
I folded the small and big blind, and i wakeup with aces on UTG

My stardard raise was 8165, i know i can raise a litte bit more with aces from UTG, but since i raised the same amount before, i keep that way with the aces.

I get a call from BU (69200 chips)  who played 2 in 14 hands,.

And from BB (96950), winch is a totally retarded, call everysingle small/bb, and plays garbage like K2suited, K5off and stuff, range pretty wild. 

The fop is 854 and the big checks 

I decided to check back, the board was rainbow and 854, maybe someone has an overpair like 99+ or 89, even 87o mite take a shot at this pot.

The BU does indeed bet 15 on a 34k pot and the big calls. 

Now, what u guys doing on this spot?

I 3bet Shoved the aces and the BU had a set of eights and the big blind flops the shit (8high straight)

I had the feeling that i was beat on that flop, but the chances that someone flops the set is pretty small 

With 88s and my image, BU should be shoving the 88s, not calling to see a flop, and the big is a retarded, if he hits an drunk 8 he would go for the kill anyway. 

Please, help on this one (sorry for  the bad enlgish)