W-straps are used to support fracured ground between rock bolt by providing a continuous steel plate between the bolts .W-straps may be bolted to the rock by two or more rock anchors and tends to conform to major surface irregularicy
W Straps provide a large surface confinement to loose rock that may form between installed rock bolts.
W Straps have a range of supply options:Multi-hole on 300mm centres or ‘set holes’ to suit individual applications. 44mm hole diameter is standard. Other hole diameters are available by negotiation. Elongated holes, 85x35mm, can be provided either in set locations in conjunction with round holes or fully multi-holed. Transverse elongated holes, 85x35mm, can be supplied in conjunction with items 1 & 2 by negotiation. "Service Line" slots, 28x8mm, can be supplied through one set of the W Straps vee’s. These service line slots can be provided either in a multi-hole configuration or in set locations to suit individual needs.Refer to Section E for the range of brackets available to suit the service line slots.
Mining W steel mat