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4.2 Angle of Draw <br />Peng' notes that: <br />The angle of draw is more or less of academic interest because the <br />subsidence profile levels off and subsidence becomes very small far before <br />it reaches the edges of the subsidence basin and from surface structural <br />damages point of view, it is in practice meaningless. <br />With this caveat, the calculated draw angles are summarized in the following table. It <br />should be noted that these are preliminary calculations. <br />Monitoring Line, Calculated <br />Gateroad, Angle of Draw <br />and Panel Ribside (degrees) Notes <br />A-Line 45.6 Point is located in a <br />1 East Headgate Gateroad plowed field. This <br />Panel 2 East Ribside probably has impacted the <br /> resulting draw angle <br /> calculation. <br />B-Line 19.7 Point is located in a <br />1 East Headgate Gateroad plowed field. This may <br />Panel 2 East Ribside have impacted the <br /> resulting draw angle <br /> calculation. <br />B-Line 1.5 Point is located in a <br />2 East Gateroad plowed field. This may <br />Panel 2 East Ribside have impacted the <br /> resulting draw angle <br /> calculation <br />J-Line 20.4 <br />2 East Gateroad <br />Panel 2 East Ribside <br />S-Line 16.5 <br />1 East Tailgate Gateroad <br />Panel 1 East Ribside <br />'Peng, Syd S., 1992, Surface Subsidence Engineering, Society <br />for Mining, Metallurgy, and Exploration, inc., Littleton, Colorado, <br />page 10. <br />