THE 35 E 6700 WAS BLASTED DURING EVENING SHIFT ON 4-25-02. SUPPORT BEGAN BEING INSTALLED ON DAY SHIFT OF 4-26-02 WITH NO WORK ON 4-26 EVENING SHIFT. UPON ARRIVAL FOR WORK ON 4-27 DAY SHIFT THE MINERS DISCOVERED THE GROUND HAD CRUMBLED AROUNDTHE EXISTING SUPPORT ALLOWING SOME OF THE SPLIT SET SUPPORT BOLTS TO FALL TO THE MUCK PILE.