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Vic6r'q engineering& Consulting, LLC <br /> 14441 VilLage Moods[rive,f'den rrafne,MN 5 5 317-1 509 <br /> Fkone: 952-4r5-8272 t-ax: a52-42r-1971 <br /> rvickeryCavicke r�cnv�.com <br /> Boulder Wall Calculations - 7-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: \ \ <br /> Driving Moment, Mo:= 10. <br /> 5•Ka•-ys•Hr•Hr•cos(81 — ) 3r ail + rgs•Ka•Hr• r lil Mo= 1918.7lbf <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 /> Wl•(Wba— Wt)•(3) <br /> 2) <br /> M1 := Ml = 3001bf <br /> 1 ft <br /> W2• Wba — Wt) + Wtl <br /> M2:= 2 J M2= 36001bf <br /> (lft) <br /> W2 Wba 1 <br /> M3 := 2 ) M3 = 2700lbf <br /> 1 ft <br /> Resisting Moment, Mr:= M1 + M2 + M3 Mr= 6600Ibf <br /> Factor of Safety. Overturning: <br /> FOS Overturning, FOSot:= Mr FOSot= 3.44 <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 /> FnninPPr under the laws of tha gtatp of MinnPsnta_ <br /> Xonaldickery, PE <br /> Registration Number: 24065 <br /> January 8, 2017 <br /> E,,SineerinS,5olutions Foran un5Mble World <br />