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_ Inventory of Structures and Renewable Resource Lands. 2.05-101 <br />• <br />Description of Possible Subsidence Consequences ....... .2.05-102 <br />Pre-and Post-mining Land Uses ..................... 2.05-102 <br />Effects of Mining on Surficial Geologic Features 2.05-102 <br />Predicted Subsidence-Related Phenomenon <br />and Material Damage Which Would Occur <br />as a Result of Subsidence ......................... 2.05-107 <br />Subsidence Prediction .......................................... 2.05-110 <br />Brief Description of Mining Method ............... 2.05-110 <br />Geologic Properties Influencing Subsidence....... 2.05-I10 <br />Subsidence Prediction Based on Local Mining <br />Experience .......................................... 2.05-111 <br />Detailed Description of Predicted Subsidence <br />Phenomena .......................................... 2.05-112 <br />Subsidence Zone Description ................................. 2.05-112 <br />Caved Zone ............................................. 2.05-112 <br />Fractured Zone ......................................... 2.05-113 <br />Continuous Deformation Zone and Near- <br />Surface Zone ....................................... 2.05-114 <br />Maximum Vertical and Horizontal Displacement, <br />Curvature, Tilt, Horizontal Strain, and Depth <br />of Surface (Tensile) Cracks ............................... 2.05-114 <br />• Projected Vertical and Horizontal Displacement .2.05-115 <br />Maximum Tilt ......................................... . 2.05-117 <br />Maximum Curvature .................................. . 2.05-118 <br />Maximum Horizontal Strain ......................... . 2.05-118 <br />Maximum Projected Depth of Surface Cracks ... . 2.05-119 <br />Angle of Draw .................................................. . 2.05-121 <br />Break Angle ..................................................... . 2.05-121 <br />Critical Extraction Width of Mining Panels ............... . 2.05-122 <br />Zones of Tensile Strain in Relation to Mine Geometry.. . 2.05-122 <br />Rate and Duration of Subsidence ............................ . 2.05-123 <br />Results of Computer Modeling .............................. . 2.05-123 <br />Effects of Topography on Subsidence Processes ......... .2.05-124 <br />Oliver No. 2 Mine Considerations .......................... . 2.05-125 <br />Block Glide ............................................. . 2.05-125 <br />Block Glide Potential in the Oliver No. 2 Mine <br />Area ................................................. . 2.05-125 <br />Block Glide Potential Due to Mining in the <br />B-Seam in the Oliver No. 2 Mine Area....... . 2.05-126 <br />Effects of Rugged Topography on Subsidence <br />and Mine Stresses ................................ . 2.05-126 <br />Fracture-Controlled Drainages ...................... . 2.05-126 <br />• Water and Methane .................................................. . 2.05-127 <br />Water and Methane in the Oliver No. 2 Mine ............ .2.05-127 <br />xi <br />