the mine

Hi,

i like SS series but H&S seems to be the most difficult. I entered into map The Enemy's Den, there is a mine. When i entered, the entrance is closed now. I killed the one soldier in front of me and three behind iron bars. But i can't go any futher. There is a wagon with a bomb but the iron bars kill me when i try pass through and i don't where i should go or how to switch off this protection.

thanks for any help.