S e c t i o n 1 3 - P a g e 1 0 May 2013 Crib Systems T ri-Log™ W ood Crib Intr oducing the T ri-Log™ System, the new cribbing method fr om DSI Under gr ound Systems Inc. that saves you time and money . It is designed to r eplace four and nine point cribs as well as other four -sided structural wood systems. This system uses only thr ee pieces to build each course compar ed to four or mor e pieces for the competitive systems. That’ s 25fewer pieces, so you’ll beneft fr om signifcant r eductions in labor , handling and transportation costs. The unique interlocking design delivers 100 contact between the nested timber layers. This ef fciency means T ri-Log™ cribs give up to 50 mor e support than the average four point crib. The tripod confguration and interlocking design pr ovide superior stability , allowing higher aspect ratios than conventional cribbing. The angle-cuts of the notches r educes str ess at the overlap and maximizes carrying capacity thr oughout the load cycle. T ri-Log™ cribs ar e slid into place tight to the r oof rather than having to be lifted over the pr evious course and can also be used with ACI pr estr essing gr out bags or headers. The fnished wedge-shaped cribs pr omote mor e ef fcient ventilation and air fow than solid squar e or r ectangular cribs. T ri-Logs™ ar e available in standar d lengths up to 60” in either 4" or 6" sizes to handle capacities in excess of 800 tons. Custom designs for virtually any capacity can be pr oduced. T ri-Log™ Crib System • Lowest cost system • Capacities up to 1,000 tons • 100contact ar ea • Stable triangle base • Single specie har dwood • Pieces lock together • Less pieces to haul • Less pieces to er ect Patent No. 6,079,910 www .dsiundergr ound.com