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�jicScery �ngineering F� �,ca�nsu�ting,j_L� <br /> , � , ti II3,,,���t c>t;a f� '�_�:�� E ,�.��,ti�!`� 5�;�� <,�� <br /> , <br /> _, <br /> "7c��,e: ��'-q-c�..v.- > `'��:� �'SZ-4'n i);'i <br /> r:i;'�,ce.�iC=�tidckerye.��.c.<�ni <br /> Boulder Wall Calculations- 9.5-Foot Total Wall Height (North Wall) <br /> Project VEC 14-003 - January 5, 2014 <br /> 1161 Elmwood Avenue, Orono, MN <br /> Page 2 of 2 <br /> Calculate Overturnina Moment: <br /> Hr H <br /> Driving Moment, Mo:= 0.5•Ka•-ys�HrHr•cos(Sl — �)•�—�� +�qs•Ka�H��—�� Mo= 4987.916f <br /> 3 2 <br /> Calculate Resistinq Moment: <br /> Resisting Moment is calculated by taking the sum of the weights times t moment arms for each section of wall above <br /> W1•(Wba— Wt)•��� <br /> M 1 := 3 M I = 91 I.251bf <br /> lft <br /> W2•�(Wba— Wt) + W�� <br /> M2:_ � M2= 8353.l lbf <br /> (��) <br /> Wba <br /> W2• <br /> M3= � M3= 6 S lbf <br /> I ft <br /> Resisting Moment, Mr:= M1 + M2 3 Mr= 15339.41bf <br /> Factor of Safetv, Overturninq: <br /> FOS Overturning, FOSot: r FOSot= 3.075 <br /> Mo <br /> i hereby certify that thi lan, specification, or <br /> report was prepared u er my direct supervision <br /> and that I am a duly Licensed Professional <br /> Fnninaar iinrlar thP IawG nf tha �tata nf MinnPGnta <br /> , <br /> Ronald W. Vickery, PE <br /> Registration Number: 24065 <br /> January 5, 2014 <br /> �n��neeirn�``�'J'o�i�tionsfc�ranC,�i7sta�i�e �or�c� <br />