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GALENA Version 5 01 <br />60 <br />— — <br />50 <br />— — <br />40 <br />— <br />— <br />30 <br />— <br />— <br />Overburden <br />20 <br />— <br />— <br />Sand and Grave <br />10 <br />—_ <br />— — — — — — — — <br />plueatic su lace — -- — <br />weathered Llaystone <br />Intact Bedrock <br />-10 <br />— — <br />Analysis: 1 <br />Multiple Stability Analysis <br />-20 <br />— — <br />Method: Bishop Simplified <br />Surface Circular <br />-30 <br />— — <br />Results <br />Critical (minimum) <br />1 I I I i I 1 I <br />Factor of Safety: 1.12 <br />-20 0 20 40 60 80 100 120 <br />Project: Permit <br />No. M-1987-049, Ready Mixed Concrete Co., Bromley Lakes Pit <br />Spier <br />Property <br />File: C:\acs <br />files\galena model files\Bromley Lakes Pit 3.gmf <br />Office of Surface Mining <br />