May 2013 S ec t i o n6 -P a g e 3 Uses Cable slings can be used as primary gr ound support in drifts, for the construction of sill mats and for wrapping pillars. Cable slings ar e particularly useful in soft, yielding gr ound or in ar eas pr one to r ockbursts. Materials Each sling is comprised of a length of cable (see chart below) with drive blocks or buttons, 2 pc. of 5' (1.5m) 39mm friction stabilizers and a minimum of 6 cement cartridges (32mm diameter), thr ee per hole. Cables can be either 0.5" (12.7 mm) or 0.6" (15.2 mm). Cable Slings Cable Length and Spacing Installation Holes ar e always drilled 8' (2.4m) in length and ar e generally oriented at appr oximately 45 degr ees. Thr ee cement cartridges ar e immersed in water , and when r eady , inserted into the frst hole and tamped to the end. One end of the cable is then inserted manually into the hole. The cable is slid into the gap in the end of the friction stabilizer and the bolt is fully installed. The same pr ocess is r epeated for the other end of the cable. If pr operly installed the friction stabilizers will hold appr oximately 1 ton per foot of length and will immediately tension the cable. Blocks or wedges can be inserted between the cable strand and the r ock. After the cement cur es the full str ength of the cable can be mobilized. Distance Between Holes Drill Hole Length T otal Length of Cable 11.5' (3.5 m) 8' (2.4 m) 27.5' (8.3 m) 13.1' (4.0 m) 8' (2.4 m) 29.1' (8.8 m) 14.8' (4.5 m) 8' (2.4 m) 30.8' (9.3 m) 16.4' (5.0 m) 8' (2.4 m) 32.4' (9.8 m) 18' (5.5 m) 8' (2.4 m) 34' (10.3 m) 19.7' (6.0 m) 8' (2.4 m) 35.7' (10.8 m) In Mexico cable slings a re supplied complety assembled and r eady to install. www .dsiundergr ound.com