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Vic�Cery �ngineerin� � �onsu�ting, LLC <br /> 1-4..i..}.f �,�iii::��,r�,'oc+c�.a f�nve;�o�en�'r;7inc.�.��� `��'�-�.-,..,�po <br /> T'hone�. �'SL4r`,�-8�;'_ j-ex: n5>_4.��r_}a;-1 <br /> rv�c��:e�ryf�vi,hr.ryerna•.eum <br /> Boulder Wall Caiculations - 6-foot Exposed Wall Height <br /> Project VEC 14-069 - Aprii 2, 2013 <br /> Joseph Feldman Project, Orono, MN <br /> Page 2 of 2 <br /> Calculate Overturninq Moment: <br /> Driving Moment, Mo := L0.5•Ka•-ys•Hr•Hr•cos(S1 — �)•�HrJJ +�qs•Ka•H��H I� Mo= 1918.71bf <br /> � 3 �2J <br /> Calculate Resistinq Moment: <br /> Resisting Moment is calculated by taking the sum of the weights times the moment arms for each section of wall above <br /> W1•(Wba — Wt)•��J <br /> M1 := M1 = 607.5 lbf <br /> lft <br /> W2L(Wba — Wt) + Wt� <br /> M2:= M2 = 40501bf <br /> (lft) <br /> W2•��a� <br /> M3 := 2 M3 = 28351bf <br /> lft <br /> Resisting Mom ent, Mr := M] + M2 + M3 Mr = 7492.5 lbf <br /> Factor of Safetv, Overturninq: <br /> FOS Overturning, FOSot :_ ��r FOSot= 3.905 <br /> Mo <br /> �n�rneerin�>,So�i�tio�'rs!or�:jr7 C�nst��h�r �'(�or�ccl <br />