Laserfiche WebLink
�/ic�Cer.c�, �,n�ineerinsr�r �onsu�ting, �( ,� <br /> �„h-.� � �i.,.=��ti �>,.sr� ;�_<a..� f �,� ,ti�iht >�3-�- :5�:7� <br /> �'�.,.,_ .. . , _, .. ��a� ,,v 4 ,�'t <br /> r.(r�:eafG:���ic:;er-�3ene.c.on� <br /> Boulder Wall Calculations - 7-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 ,��'"f <br /> Calculate Overturninq Moment: �� <br /> Driving Moment, Mo= rOS�Ka•-ys•HrHr�cos(fil - �)•�Hrll +rqs•Ka•H��H� Mo= 1995.5 lbf <br /> L 3 JJ L 2 <br /> Calculate Resistinq Moment: <br /> f�; <br /> Resisting Moment is calculated by taking the sum of the weights t�rfes the moment arms for each section of wall above <br /> � <br /> ��. <br /> WI�(Wba- Wt)•�21 <br /> M1 := 3� M1 = 1.17 x ]031bf <br /> Ift <br /> W2•�(Wba- Wt) + W�� <br /> M2:= 2 M2 = 3619.7 f <br /> (I[i) <br /> Wba <br /> W2• <br /> M3 := 2 M3 303.41bf <br /> lft <br /> Resisting Mom ent, Mr:= M 1 + + M3 Mr= 7093.1 lbf <br /> Factor of Safe Overturnin <br /> FOS Overturning, FOSo .= Mr FOSot = 3.555 <br /> Mo <br /> I hereby certify that t plan, specification, or <br /> report was prepared nder my direct supervision <br /> and that I am a du Licensed Professional <br /> Fnninaar unriar t lawc nf tha�tata nf Minna�nta_ <br /> .r.--.''�~� <br /> � <br /> Ronald W. Vickery, PE <br /> Registration Number: 24065 <br /> January 5, 2014 <br /> ��n�ineeiing�`-jolutions{oran�,/nstafi/e (/(lorlc� <br />