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The computer program determines the factor of safety for slip circles of varying <br />radii about specified points but does not automatically converge on the minimum factor of <br />safety. In order to minimize cost, a coarse grid was initially established. The grid was <br />then successively refined to converge on the minimum factor of safety. In most cases <br />three to five interations were required. <br />STABILITY ANALYSIS <br />Various soil states were investigated to determine the most critical condition for <br />each embankment. The unconsolidated undrained condition, the consolidated-undrained <br />condition, and the consolidated-drained condition were considered for all embankments. <br />For MBifl and FW;rl (the clay material embankments) the consolidated undrained stability <br />was critical, while for MB.n2 the consolidated drained condition was critical. <br />Both a static analysis and a seismic analysis were performed for each dam em- <br />bankment. For the static analysis a fully saturated embankment was assumed. The <br />seismic (or dynamic) analysis assumed the same condition in combination with a seismic <br />coefficient (K=a/g) of 0.1. The results of the static and the seismic analyses are <br />• summarized in Table 8. The final run for each analysis is included as a supplement to this <br />report. <br /> <br />