Type V support 8ft. swellex and 16ft. super swellex. While installing the 8ft bolts in the back at the 3600 level of the Benbow decline, the bolter operator observed ground movement. The bolter was pulled back and shot-crete was applied. The operator then made ready the required 16ft long support, before installation of the 16ft. bolts the ground failed above the 8ft. bolts.