Laserfiche WebLink
n <br />U <br />-IS- <br />STABILITY ANALYSIS <br />General <br />Prior to beginning an analysis of the stability of the waste <br />disposal site, it is necessary to generally define the limits both <br />in area and in height of the disposal site. Energy Fuels personnel <br />indicated the approximate volumes of spoil that would be generated <br />by the intial box cut. Our design is based upon volumes of approxi- <br />mately 7 million bank cubic yards in Area I, and about 6 million <br />bank cubic yards in Area II. Fill which will go into the spoil dis- <br /> posal areas will be generated from the initial box cuts. In selec- <br />• ting the areas for the spoil disposal, it was desired to locate <br /> the spoil disposal sites in areas which would not be undermined and <br />to locate fills in gently sloping areas, if at all possible. In <br />addition to these design constraints, we believe that a natural con- <br />tainment, such as the valley, is inherently more stable than fill <br />placed on sloping hillsides. Both of the selected locations have <br />natural containments on three sides of the fill. Factors which <br />influence the analysis of stability include the height of fill, <br />the slope, foundation conditions at the uncontained toe, the <br />strength and permeability characteristics of the fill, surface and <br />subsurface drainage conditions, the methods of construction, and <br />to a very limited degree, the method of mathematical modeling. <br />The method of mathematical analysis can influence the design fac- <br />• for of safety approximately 20 percent. Generally, the more crude <br />