2008-01-11_PERMIT FILE - C1982056A (2)

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additional conveyor urns else installed to handle the waste rock generated by the mining process. A metal slap,. belt-drive building with dimensions of 32 x R4 x 20 feet, located north of the existing transfer building, wa- caastsuetedzn 1995, and provides electrical and mechanical support for conveyor system. Banding aalcu}ations addressing removal of the new stage belt-drive building era presented in Volume 1-A. TCC's upgraded coat handling facilities provide the mine with the flexibility ka convey coal at var5ring rates depending on derstand. Uniform construction practices utilized in the facility upgrades inelade drivingfinstalling caissons and building grade beams and footers to prar4de an adequate foundation far new ar modified structures. The individual design razluiremenis for the variatzs structures dictate the type of foundation required. The facilities are shown an Map 24, During the upgrade, the width of the slope caaveyar belt u•as increased to accamnsadate the higher tonnage. AIt belts and systems are sized to efficiently convey itte increased Wruzage. Tee existing transfer building is used to support the slope-kielt, The new trausfer buiidtngzs located south of the existing transfer building, fn this building, coal is transferred from the slope-belt to the stacker nrbe feed-trelt, or waste rook is transferred from the slope-belt to the waste reek wnvayor belt. 'The lacatian of the bell has been modified to £acititate operations around the storage building. The new location, as shown on Map 24, Surface C•aciCities; required excavating approximately 11,044 CY of spoil and reroutnzg Ditch 17.4 around the stockpile. T1ze excavated material was either placed in the reclaim tunnel excavation er in t}ze rvaste rack disposal area. The excavated spoil was sloped to 1H:IV or steeper depending an field canditi0ns. if field aondrtians require, a safety bench wilt be constnzcted in the out slope. Removal of this material well not irttgact the reclamation plan. louring construction of the coal stockpile pad and haulraad, a minor amount of put anti &ll uztrk was required, The northwestern edge of the pad and the haulroad required approximately 2fl,Op{l CY of frfl. Apprpxiznateiy 6,404 CY of fill was required for the remainder of the area to get the pad to grade. Dozing site preparation, some of the existing Pill was removed from this area. Estimates indica#e agproximatety 25,1JOt? CY of material was removed, relative to the existing configuration at the time. Of this volume, apgroxitnatety 12,{144 CY was not suitable fcr construction proposes and was placed in the waste rock disposal site. Required fill material was borrowed from the spoil adjaeezzt to iha TCC portal axea. 77re barrow area is showm on Map 2~}. The barrow area was graded level, and thus will provide additional storage area. The sideslnpes rtf the borrow area were regraded to 2H:1V. Canstnrction of the reclaim turmel and laterals cequired excavating trenches and then constmating the tunnel within the trenches. The tunnel and laterals are cansiructzd of concrete aadlor steel. An exhausdescape tumtel extends franr the reclaim iunneI. The excavated dirt was used in constructing the stockpile base. A concrete wail was corrstmcted where the overland belt exits the reclaim tunnet. ?tpgro'.cimately 149 fSY of material was removed fray the borrow area and used as bedding and packing for Culverts D-2-C: and A,2-F, Coat transferred from the stacker tube feed-belt to the stacker tube is stockpiled around the stacker tuba. As shown on Map 24, a portion of existing Haulraad B (see CYCC Permit C-$1.p?1}, was covered up by the coal stockpile and reclaim tunnel- 3'his required that the haulraad be r.Yated around the Werth and 1c~est sides of the coat stockpile. The haulroad prpfale and typical cross-seKion aze provided an Map 30A. The stockpiled opal sits over the realatm ttutnet and is typically fed by gravity to the overland belt by vibratory feeders. As the stockpile increases in size, ttawever, rho coal is dazed into the live cane area of the stockpile to facilitate gravity feed tq the feedor5.. Feeders located in the rECiaim tunnel feed coal onto the avarlarrd belt from the raw coal stockpile. A oontrol building (MCC-1} is canstmcted adjacent to the reclaim tunnel exhaust feu. This building houses the instrumentation necessary for the rechrirn system. The building is approximately 8 x l t} x I [? feet and is corzstruated an a S-inch ooncrete pad and 4 x 1D foot stem wail. The location of the building is shown nn Map 2,4, When the building ix no Langer required, it will be removed. f?vertand Convenor (Mndifzed and S n rc,,e~ied by TRn7,59 far Wg':~plant 11~ The 48-inch pverland belt was canstrueted during 1 J8~3 to convey coal from the reclaim tunnel at the RDM Caa} Stockpile to the Crusher $ui}ding at Tigple 2. Alternatively, if trucks are used far coal haulage, the coal can b~ 2.45x27