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r~ <br />_ 5,g $~ QF SEASON CONFIGURATION <br />It is anticipated that construction of the mine bench <br />stabilization will not be completed prior to the winter of 1984. <br />Therefore, provisions for delay in construction will be required. <br />The provisions required at end of construction and during <br />- significant weather delays (greater than one week) include: <br />' o Compaction of the final lift of material, prior to winter <br />shutdown, to a minimum of 958 Proctor density in order to <br />limit moisture infiltration; <br />o Grade fill surfaces such that water will run off and not be <br />- allowed to pond; <br />1 o Provide temporary diversion along mine bench and other areas <br />J to minimize surface erosion; <br />o Place 12 inches of loose material over compacted fill <br />surfaces to reduce "weathering" of the compacted surface. <br />' The provisions required when construction commences following <br />significant delays include: <br />o Removal of loose surface materials; <br />o Scarifying of the surface to a minimum depth of 12 inches; <br />o Recompaction of the surface to 908 Standard Proctor density <br />' prior to resuming construction. <br />The utilization of these methods will reduce the impact due tc <br />_ the weather conditions expected during significant delays or <br />during winter periods. <br />J <br /> <br />w <br />I 26 <br /> <br />