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Vickercy E_ngineering& Consulting,LLC <br /> 14441 Village Woods L)rive,E-clen Fraine,MN 55}47_1 5o9 <br /> Phone: 952-40"5-8272 rax: 952-426-1971 <br /> m,icLe njCavic6 rye n6.com <br /> Boulder Wall Calculations - 5-foot Total Wall Height <br /> Project VEC 17-003 - January 8, 2017 <br /> Willow Hill Guest Residence, Orono, MN <br /> Page 2 of 2 <br /> Calculate Overturning Moment: \ l <br /> Driving Moment, Mo:= 10. <br /> 5•Ka•-ys•Hr•Hr•cos(bl — ) (Hr II +rgs•Ka•Hr�Hr Mo= 699.21bf <br /> Calculate Resisting Moment: / L <br /> Resisting Moment is calculated by taking the sum of the weights times the moment arms for each section of wall above <br /> WI.(Wba- Wt)•(3) <br /> 1 <br /> M1 :_ M1 = 4501bf <br /> lft <br /> Wt <br /> W2•[(Wba — Wt) + ---1� <br /> M2:= 2 M2= 12001bf <br /> Oft) <br /> W2•(Wba)I <br /> M3 := 2 ) M3 = 7501bf <br /> lft <br /> Resisting Moment, Mr:= M1 + M2+ M3 Mr= 24001bf <br /> Factor of Safety, Overturning: <br /> FOS Overturning, FOSot:= Mr FOSot= 3.432 <br /> Mo <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 /> Fnninaar undar tha laws of tha States of Minnasntn <br /> Xonaldickery., PE <br /> Registration Number: 24065 <br /> January 8, 2017 <br /> -En,zineerinSsolutions Foran(Instable World <br />