Laserfiche WebLink
SubTerra, Inc. Peabody Twentymile Coal, LLC April 11, 2016 <br />Subsidence Mitigation During 9 -East Undermining of the Energy Spur at the Foidel Creek Mine <br />TABLE OF CONTENTS <br />Section Description Page <br />No. No. <br />1. INTRODUCTION..................................................................................................................1 <br />1.1. Scope of Work...................................................................................................................1 <br />1.2. Approach...........................................................................................................................2 <br />1.3. Closure.............................................................................................................................2 <br />2. MINE SUBSIDENCE............................................................................................................3 <br />2.1. Subsidence Mechanics.....................................................................................................3 <br />2.2. Subsidence Prediction.......................................................................................................4 <br />2.3. Subsidence and Gradient Change Prediction Along the Energy Spur...............................5 <br />3. REMEDIAL ACTIONS..........................................................................................................6 <br />3.1. Remedial Planning............................................................................................................6 <br />3.2. Field Implementation.........................................................................................................6 <br />4. CONCLUSIONS...................................................................................................................7 <br />i PN: 2016-10 <br />