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2-27 <br />to insure that each lift is placed nearly horizontal with but <br />• a slight slope towards the drainage control structures to <br />eliminate saturation of the fill and its inherent slope stability <br />reduction. Slope stability of the refuse pile is addressed in <br />Section 2.4.2.3. All outslopes will be constructed at a maximum <br />of 2H:1V. <br />Haul roads on the refuse pile will be approximately ten percent <br />grades. As each lift of refuse is placed on the pile, the haul <br />road will be extended to the new elevation. The outside edges <br />of each haul road will have a three foot high berm to contain <br />any runoff. Water bars will cause any water on the haul road <br />to flow to the inside edge where a ditch will carry it to the <br />sediment pond. <br />When the refuse area reaches design volume of any phase, topsoil <br />will be removed to the outline of the next phase, an impermeable <br />foundation constructed and deposition of refuse continued. When <br />• Phase Four boundaries are met at the end of the project, the <br />refuse area will be reclaimed as described in Section 3.0. <br />2.4.2.3 Slope Stability Analysis <br />Stability analyses were performed using a computer program called <br />REAME. REAME, an acronym for Rotational Equilibrium Analysis of <br />Multilayer Embankments, is used to determine slope stability <br />safety factors assuming cylindrical failure surfaces, and was <br />written by Dr. Yang H. Huang, Department of Civil Engineering, <br />University of Kentucky. <br />The method used by this program in determining the factor of <br />safety is the normal method in which the sliding mass is divided <br />into a number of slices, each having a width and average height. <br />The factor of safety is defined as a ratio between the resisting <br />moment due to the shear resistance or effective cohesion and <br />friction angle of the soil and the overturning moment due to the <br />• <br />