Rock Mechanics in Salt Mining

Laurentian University Sudbury, Canada.

• PREFACE -- 1 GENERAL GEOLOGY -- 1.1 Deposition of evaporites -- 1.2 Post-depositional changes -- 1.3 Lithostratigraphy of evaporites -- 1.4 Saline facies References -- 2 FOLDING STRUCTURES -- 2.1 Flexure folding -- 2.2 Complex folding -- 2.3 Diapir folding -- 2.4 Inner folding References -- 3 FAULTING STRUCTURES -- 3.1 Normal faults -- 3.2 Reverse faults -- 3.3 Tectonic breccia -- 3.4 Structural defects References -- 4 COMPOSITION OF SALT -- 4.1 Texture of salt -- 4.2 Homogeneous structure -- 4.3 Heterogeneous structure -- 4.4 Anisotropy of salt deposits References -- 5 FORM OF SALT DEPOSITS -- 5.1 Blanket form -- 5.2 Flexural form -- 5.3 Dome form -- 5.4 Vein-like form -- References -- 6 EXPLORATION AND CATEGORIZATION OF EVAPORITE DEPOSITS -- 6.1 Surface exploration -- 6.2 Exploration by drilling -- 6.3 Evaluation of ore reserves -- 6.4 Characterization of evaporite strata References -- 7 ACCESS AND MINE DEVELOPMENT -- 7.1 Pre-development workings -- 7.2 Ground consolidation -- 7.3 Shaft sinking and lining -- 7.4 Mine development workings References -- 8 RISK OF WATER INFLOW -- 8.1 Ground water effects -- 8.2 Natural factors -- 8.3 Technological factors -- 8.4 Case history of brine inflow References -- 9 ELASTO-PLASTIC DEFORMATION AND FAILURE -- 9.1 Elastic strength properties of salt -- 9.2 Elementary behaviour of salt -- 9.3 Transitional deformations of salt -- 9.4 Time-independent failure References -- 10 TIME-DEPENDENT DEFORMATIONS AND FAILURES -- 10.1 Rheological characterization -- 10.2 Creep properties -- 10.3 Creep mechanism -- 10.4 Creep rupture -- References -- 11 OUTBURST OF VIOLENT FRACTURING -- 11.1 Characterization of gas -- 11.2 Dynamic properties of salt structures -- 11.3 Dynamics of salt and gas liberation -- 11.4 Outbursts in mining conditions References -- 12 MINING OF MODERATELY THICK DEPOSITS -- 12.1 Principal mining systems -- 12.2 Design consideration of mine structures -- 12.3 Stability evaluation of mine structures -- 12.4 Stress analysis of mine structures References -- 13 MINING OF THICK DEPOSITS -- 13.1 Principal mining systems -- 13.2 Design consideration of mine structures -- 13.3 Stability evaluation of mine structures -- 13.4 Stress analysis of mine structures References -- 14 MINING OF INCLINED SALT BODIES -- 14.1 Principal mining systems -- 14.2 Design consideration of mine structures -- 14.3 Stability evaluation of mine structures -- 14.4 Stress analysis of mine structures References -- 15 SOLUTION MINING -- 15.1 Principles of solution mining -- 15.2 Mechanics of solution models -- 15.3 Stability considerations of caverns -- 15.4 Stress analysis of cavern layout References -- 16 STORAGE CAVERNS -- 16.1 Utilization of storage caverns -- 16.2 Loading conditions of caverns -- 16.3 Stability analysis of caverns -- 16.4 Ground control of storage caverns References -- 17 SALT MINING SUBSIDENCE -- 17.1 Dry mining subsidence -- 17.2 Solution mining subsidence -- 17.3 Models of subsidence development -- 17.4 Surface subsidence damages -- Reference -- SUBJECT INDEX.