Documents from the Mine Safety and Health Administration report

Genwal Resources, Incorporated
Crandall Canyon Mine
Mine ID: 4201715

Fall of Face or Rib Accidents Occurring August 6, 2007 and August 16, 2007

Reports

• Fatal Accident Report (without appendices — 16,732 kb)
• Fatal Accident Report (with appendices — 16 mb)
• Crandall Canyon Accident Investigation Summary and Conclusions (briefing paper)

Fatal Accident Report Appendices

• Appendix A — Persons Participating in the Investigation
• Appendix B — Victim Data Sheets
• Appendix C — Safety Zone Map
• Appendix D — Mine Development History Map
• Appendix E — AAI May 5, 2000, Report
• Appendix F — AAI July 20, 2006, Draft Report
• Appendix G — AAI August 9, 2006, Report
• Appendix H — AAI December 8, 2006, Report
• Appendix I — AAI April 18, 2007, Report
• Appendix J — Roof Control Plan for Recovering South Barrier Section
• Appendix K — Massive Pillar Collapse
• Appendix L — Subsidence Data
• Appendix M — Neva Ridge Technologies Report
• Appendix N — Seismic Analysis
• Appendix O — Images of March 10, 2007, Coal Outburst Accident
• Appendix P — ARMPS Method Using Barrier Width Modified Based on Bearing Capacity
• Appendix Q — Finite Element Analysis of Barrier Pillar Mining at Crandall Canyon Mine
• Appendix R — Description of BEM Numerical Models
• Appendix S — Back-Analysis of the Crandall Canyon Mine Using the LaModel Program
• Appendix T — Abutment Load Transfer
• Appendix U — Coal Properties Input
• Appendix V — Rock Mass Properties
• Appendix W — MSHA Main West 2006 ARMPS
• Appendix X — Mine Ventilation Plan
• Appendix Y — Glossary of Mining Terms as used in this Report
• Appendix Z — References

• Complete Appendix — Compilation of all the appendices

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Source: www.msha.gov/Fatals/2007/CrandallCanyon/CrandallCanyonreport.asp