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4. Roof Support. Once extraction has been completed, the newly <br />exposed roof will be supported by roof bolts. As mentioned <br />earlier, roof bolts will be either conventional or resin <br />bolts. <br />5. Ventilation. After roof support has been established, <br />ventilation will be restored to the face by rehanging and <br />extend'ng brattice or vent tubes. Restored ventilation to the <br />face will prevent large accumulations of gases such as <br />methane. <br />6. Clean-Up. Rib Bluffing and spillage will occasionally occur <br />at the working faces. The ribs will be shoveled or cleaned up <br />before the next cutting sequence begins. <br />7. Rock Dusting.The entries will then be rock dusted by hand or <br />machine to keep coal dust accumulations to a minimum. <br />• Pillar Extraction. The cycle of mining for pillar extraction is the <br />same as development, with the sequence of cuts changed. Pillars will be <br />extracted in sequence as room development continues on retreat toward <br />the main entries. A method of planned pillar extraction is shown on the <br />Mine Plan Map (Map 11). =~= ~a7 ?,o~-- /Z ,4 <br />Conservation of Coal Resource <br />Peerless Resources, Inc. will constantly strive in its mining to recover <br />the maximum coal tonnage that can be practically removed. The overall <br />goal of Peerless Resources, Inc. with respect to coal recovery is to go <br />well beyond the due diligence, ordinary care, and general accepted <br />mining practices required to maximize coal production. Maximizing coal <br />production while minimizing unnecessary costs are items that both the <br />government and Peerless Resources, Inc. are deeply concerned with during <br />these times of economic recovery. <br />• <br />MpR 0 4 19~ <br />2.05-12 <br />