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Boulder Wall Calculations - 3-Foot Total Wall Height, No Crest Slope <br />Project VEC 24-055 - April 15, 2024 <br /> 4745 North Shore Drive, Orono, Minnesota <br />Page 3 of 3 <br />Analyze Bearing Capacity (continued) <br />Bf Wba LPdBf 3ftBf1 Bf 2 EBf1 2.704 ft <br />Ultimate bearing capacity of foundation soils (Qult): <br />Qult 0.5 γsBf1NγγsHbNqQult 6085.716 psf <br />Qa Ww <br />Bf1 1ftQa 253.358 psfFOSbc Qult <br />QaFOSbc 24.02 <br />Summary of Results <br />Total Height:Hr 3ftBase Sliding Factor of Safety:FOSs 1.794 <br />Crest Slope:β 26.6 degOverturning Factor of Safety:FOSot 3.45 <br />Surcharge:qs 0 <br />lbf <br />ft2Bearing Capacity Factor of Safety:FOSbc 24.02 <br />I hereby certify that this plan, specification, or <br />report was prepared under my direct supervision <br />and that I am a duly Licensed Professional <br />Engineer under the laws of the State of Minnesota. <br /> <br />Ronald W. Vickery, PE <br />Registration Number: 24065 <br />April 15, 2024 <br />46