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J <br />information was utilized to analyze conditions and design the <br />bench stabilization. Because of the variable conditions <br />i ! encountered with the bench area, several different models were <br />developed to represent the conditions encountered and to design a <br />J ~ <br />site specific configuration. Further discussions and <br />presentation of site conditions and models evaluated are provided <br />i in Sections 2.0, and 4.0. <br />' 1.5 RESULTS Q~ ANALYSIS <br />The analysis and model development for the mine bench <br />stabilization produced, in general, an upper slope of 25 degrees <br />1 constructed of coal waste and the lower portions consisting of a <br />J berm constructed of coal waste, soil cover and a rock berm. In <br />' addition, the toe area requires excavation and recompaction of <br />J ~ the on-site materials. However, for the edges of the mine bench <br />area, coal waste was replaced with recompacted bench material to <br />I ~ provide protection against exposure of coal waste and to reduce <br />the extent of the toe area or to eliminate the berm. Specific <br />I details and design conditions are provided in Sections 4.0 and <br />15.0. <br />I ~ 1.6 DESIGN CONDITIO N ~p CO STRUCTION REQUIREM ENTS <br /> Design conditions for stabilization of the mine bench are <br /> <br />I provided in Section 5.0. Special areas include reconstruction of <br /> the toe, with staged construction, dewatering, drain installation <br /> and general construc tion guidelines. Specific details for these <br /> areas are presented in Section 5.0. <br />i <br />1" <br /> 5 <br />