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�IVIL DESIGN <br /> PROJECT: KIMMES RESIDENCE PROJECTNO: 12-187 SHEET: 1 OF 3 <br /> SH:i V BACK SLOPE,50 PSF SURCHARGE <br /> LOCATION: ORONO,MINNESOTA BY: BTD DATE: 6/4/2012 <br /> A.GENERAL DESIGN DATA <br /> Boulder,p= 140 pcf <br /> Wall Batter,�= 15.0 degrees <br /> Design Height,H= 10.0 ft(design height+embedment) <br /> Backslope,(3= 10.0 degrees <br /> Surcharge,q= 50.0 psf <br /> FS Sliding> 1.5 <br /> FS Overturning> 1.5 <br /> Bearing> 2.0 <br /> B.SOIL PARAMETERS <br /> �(deg) c(ps� y{pct) <br /> Retained Soil 26 0 120 <br /> Foundation Soil 26 0 120 <br /> C.GEOMETRIC PARAMETERS <br /> �= 26 degrees <br /> a= 105 degrees(90°+t) <br /> �= 10.0 degrees <br /> S= 1?.3 degrees(2l3*�) <br /> D.COULOMB EARTH PRESSURE CALCULATIONS <br /> ka= 0.29 k _ sin`(a +¢) <br /> Pa= O.SyH`lca � � sin(�+S)sin(�-Q) � <br /> Pe= 1727 lbs/ft s in a •s in a -E • 1+ <br /> � � sin(a-8)sin(a +,D) <br /> Fv- Q� <br /> PQ= 144 lbs/ft <br /> E.EXT'ERNAL STABIL[TY -�--- � <br /> I ''�, <br /> 1.OVERTURNING {�� <br /> I, �--'� <br /> Overturning Moment j �'—\ <br /> Mo= Pa(H/3)+Pq(Hl2) � w„`�'�`ER ' �---� <br /> Mo= 6476 ft•ibs z A� � � }----j <br /> � �____.___'; <br /> Resisting Moment � �_ � (--� � � \ <br /> H= Design Height(ft) � r----��--� � <br /> �, <br /> D= Depth of Boulder(in) � _ � ; a� i._�_�� <br /> L=Distance from overtuming i � �J _ _� <br /> point to centroid(ft) <br /> I , <br /> F`----L-^—.i <br /> 1.----�----� <br /> Figure 1:Extemal Stability Diagram <br /> Telephone(952)303-5312•Fax(763)392-1989•www.cdp-us.com <br /> 8609 Lyndale Avenue South Suite 200•Bloomington,Minnesota•55420 <br />