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Surface Rail Transfer Area <br />From the portal opening, mine rail will extend for a distance of <br />approximately 100 feet on level surface to provide an adequate area <br />for efficient and safe access to the rail mounted vehicles. Near the end <br />of the rail, in line with the decline, a hoist system will be installed <br />within a protective shell-type structure. General construction and <br />dimensional) information for the surface rail system is shown on Table <br />2.05.3-2. <br />Ventilation ;Shaft, Mine Fan, and Housing <br />A single ventilation shaft will be constructed during the initial <br />development of the mine. The shaft will be circular and approximately <br />14 feet in diameter throughout its full depth of approximately 300 feet. <br />Walls of the shaft will be concrete lined, where necessary, to stabilize <br />weak strata or control water inflows. <br />At the collar of the shaft a fan housing will be constructed to enclose <br />the fan, motor, and associated electrical equipment. The housing <br />structure will be constructed from prefabricated steel panels. An <br />extension from the housing at the top of the shaft will enclose and-- <br />support the fan. All of the fan housing components will be supported <br />by a concrete collar pad designed to support the load of the structure, <br />and will be anchored securely into the ground. <br />The anticipated ventilation demands to control coal dust, vehicle <br />emissions, and methane in face areas will require a fan in either an <br />exhausting nor blowing configuration. Avane-axial type fan is <br />anticipated .For the installation which provide maximum air moving <br />efficiency, allow adjustments to flow volume, and can be equipped with <br />dampers to reduce noise levels. The fan will be controlled and <br />monitored bey automated systems which well provide timely warning in <br />the event of fan malfunctions. In addition, the fan will be operated <br />from a power system that is isolated from the power systems for the <br />mine and suirface facilities. General construction and dimensional <br />information for the fan and fan housing is provided on Table 2.05.3-2. <br />Upon completion of mining, the fan, associated mechanical equipment, <br />and housing structure will be salvaged and removed from the site. <br />Foundations and other incombustible construction materials will be <br />disposed of in the shaft. Finally, the collar of the shaft will be sealed <br />with a reinforced concrete cap equipped with a vent pipe. Overburden <br />material will be placed over the concrete cap and the area will be <br />graded to provide drainage away from the immediate area of the seal. <br />• Detailed descriptions of the shaft seal and final reclamation of the <br />associated area are provided later in Section 2.05.4. <br />2.05.3-13 Revised 5/01/07 <br />