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January 2, 2020 Page 7-1 <br />Agapito Associates, Inc. <br />7 REFERENCES <br /> <br />Agapito Associates Inc. (2004), “Summary of Geotechnical Data and Its Implications for Pit <br />Orientation and Highwall Mine Design,” letter report to Steve Hinkemeyer, Trapper <br />Mining, Inc., November 11, 19 pp. <br /> <br /> Agapito Associates, Inc. (2018), “Geotechnical Design and Operational Considerations for <br />Highwall Mining—I, J, North Ashmore and North Colt Pits, Trapper Mine,” report to <br />Trapper Mining, Inc., July 24, 319 pp. <br /> <br /> Agapito Associates, Inc. (2019a), “Geotechnical Design and Operational Considerations for <br />Highwall Mining—N Strikeline Pit, Trapper Mine,” report to Trapper Mining, Inc., <br />July 29, 93 pp. <br /> <br /> Agapito Associates, Inc. (2019b), “Geotechnical Design and Operational Considerations for <br />Highwall Mining—L Pit, Trapper Mine,” report to Trapper Mining, Inc., November 4, <br />191 pp. <br /> <br />Bieniawski, Z. T. (1989), Engineering Rock Mass Classifications, New York: Wiley. <br /> <br />Franklin, J. A. and R. Chandra (1971), “The Slake Durability Test,” International Journal of Rock <br />Mechanics and Mining Science, 9(3):325–341. <br /> <br />Mark, C., and T. M. Barton (1997), “Pillar Design and Coal Strength,” Proceedings, New <br />Technology for Ground Control in Retreat Mining, NIOSH IC 9446, pp. 49–59. <br /> <br />Mark, C., F. E. Chase, and A. A. Campoli (1995), “Analysis of Retreat Mining Pillar Stability,” <br />Proceedings, 14th Conference on Ground Control in Mining, Morgantown, WV, August <br />1–3, pp. 63–71. <br /> <br />Mark, C., G. M. Molinda, and T. M. Barton (2002), “New Developments with the Coal Mine Roof <br />Rating,” Proceedings, 21st International Conference on Ground Control in Mining, <br />Morgantown, WV, pp. 294–301. <br /> <br />NIOSH (2006), “ARMPS–HWM: New Software for Sizing Pillars for Highwall Mining,” <br />Technology News, No. 516, March, 2 pp. <br /> <br />Norwest (2000), “G Pit Strike-line Mining Highwall Stability,” report to Trapper Mining, Inc., <br />October 2. <br /> <br />Peng, S. S. (1992), “Surface Subsidence Engineering,” Littleton, CO: Society for Mining, <br />Metallurgy, and Exploration, p. 78. <br /> <br />United States Department of Labor (2019), “Title 30 Code of Federal Regulations,” available at <br />https://arlweb.msha.gov/regs/30cfr/. <br />