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This rock mechanics study was mandated by DOE because the data Dase on <br />rock mass response resulting from mining a pitching seam is meager to <br />the foreign Literature and non-existent in the United States literature. <br />A summary of the results of a computer search conducted on eight litera- <br />ture data bases is presented in Appendix A. <br /> <br /> <br />r <br />'t <br />.~ <br /> <br />3 <br />