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( ' �`� .2 . '--� r <br /> ' ; , ; �IVIL DESI�N <br /> : <br /> ' � 1l7I <br /> � .. � .. ._. . _ . <br /> `� , ��ri �." J � i, �. �; �� �> � t a�' . �_ f:= <br /> PROJECT: 3315 GRAHAM HILL ROAD PROJECT NO: 11-110 SHEET: 2 OF 3 <br /> NO BACK SLOPE, 150 PSF MAXIMUM LIVE LOAD <br /> LOCATION: ORONQ MINNESOTA BY: TPH DATE: 7/22/20ll <br /> Boulder H D L p MR <br /> Wall (ft) (in) (ft) (pcfl t� s <br /> 1 7.00 31.0 2.23 140 5644.3 <br /> MR= 5644.3 ft�lbs <br /> FS Overturning= MR/Mo <br /> FS Overturning= 2.13 >1.5 OK <br /> 2.SLIDING <br /> - Sliding Resistance <br /> - Determine Area of Mass <br /> Block Area= 18.1 sf <br /> - Determine Weight of Mass (RF� <br /> VF = Boulder Area*p <br /> VF = 2532 lbs/ft <br /> RF =VFTan(33)+109(Lab Testing) <br /> RF = 1753 lbs/ft <br /> FS Sliding= RF/(Pa+Pq) <br /> FS Sliding= 1.75 >1.5 OK <br /> 3.BEARING PRESSURE <br /> - F,ccentricity <br /> e=D/2-�Mx-Mo)�e <br /> e= 0.11 <br /> e < D/6 <br /> - Applied Bearing Pressure(under bottom boulder) <br /> qm�= for non-eccentric footing-VF/D <br /> qm�= far e<D/6-VF/D*(1+6e/D� <br /> 9,„�= for e>D/6-4*VF/(3*(D-2*e)) <br /> qm3= 1228.6 psf <br /> 8609 Lyndale Avenue S, Suite 200� Bloomington,MN 55420 <br /> Office: 612-284-3696 <br /> Website:www.cdp-us.com <br />