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<br /> 01995 KEYSTONE*Retaining Wall Systems • 4444 West 78th Sc. • Minneapolis,MN 55435 • (612)897.1040 • (800)747-8971 • Fu(612)897-3858
<br /> T--------G*
<br /> v.. . �� '3 9 3
<br /> 1*I1 i1
<br /> -t- _, Sly .. _ Slope
<br /> NOTotal . Retained Soil Type Total Retained Soil Type
<br /> Height Height •
<br /> •
<br /> C...,!,-.5 L . . ,. 0.,.
<br /> ..::,.„.6..,„..,:„ ..,...,,,,,,y,.
<br /> NEAR VERTICAL WALL ONE INCH SETBACK WALL 'y'.
<br /> (Minimum setback per unit) (1"setback per unit) �: 4
<br /> ‘,.4 T-.)s
<br /> STANDARD UNITS STANDARD UNITS
<br /> MAX.HGT. Backslaps MAX.HOT. . Backslap. .„n
<br /> Soil Type Level 4H:1V 3H:1V 2H:1V Soil Type Leval 4H:1V 3H:1V 2H:1V
<br /> Sand/Gravel 4.9' 4.8' 4.7' 4.3' Sand/Gravel 6.5' 6.3' 6.1' 5.7"
<br /> Silty Sand 4.5' 4.4' 42 3.8' Silty Sand 5.8' 5.8' 5.4' 4.8'
<br /> .Slit/Lean Clay 42 4.0' 3.8' 3.3' SIWLean Clay 52 - 5.0' 4.8' 4.0'
<br /> COMPAC UNITS COMPAC UNITS
<br /> •
<br /> 41 ••HGT. •• Backslap. MAX.HGT. Becksiope
<br /> Soil Type Level 4H:1V 3H:1V 2H:1V Soil Type Level 4H:1V 3H:1V 2H:1V
<br /> ' Sancitt3ravel 2.7' 2.6' 2.5' 24' Send/Gravel 3.6' 3.5 3.4' 32
<br /> Silty Sand 2.5' 2.4' 2.3' 2.1' Silty Sand 32 3.1' 3.0' 2.T
<br /> Silt/Leen Clay 2.3 22 _ 2.1' 1.8' Silt/Lean Clay 2.9' 2.8' 2.7' 22
<br /> Notes: Calculations assume a unit weight of 120 lha/cf for all soil types.Assumed$ angles for earth pressure calculations
<br /> are:Sand/Oravela34'.Silty Sand•30',and Sandy Slit/Lean Clay.26'.Non critical structures with SF.1.5.
<br /> No surcharge loadngs are included.Surcharges or special loading conditions wall reduce mardmtan wall heights.
<br /> Sliding calculations assume a 6'flushed Stone levelling pad as compacted foundation material.
<br /> The Information provided is for preliminary design tree only.A qualified professional should be consulted.Keystone
<br /> accepts no liability for the Improper use of these tables.
<br /> 3/13/95
<br /> Page 6-b of 6
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