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1 <br /> SLOPING GROUND SURFACE TRAFFIC SURCHARGE IF ANTICIPATED <br /> UP TO 1..SH 1 V MAX i . . i <br /> \\ /!,. l <br /> vv NO-LOAD ZONE LIMIT,' ""--."'I <br /> 60"'> /` `_► I \ <br /> vv 15 WIN, a' <br /> ‘E gre <br /> p,G w = <br /> \\\ <br /> \ 4 (--"\ 75 PSF TRAFFIC <br /> / <br /> \\\ I SURCHARGE PRESSURE <br /> A • <br /> t' X \\ ah <br /> + H/4 (TI . w <br /> FOR LEVEL BACKSLOPE I I } <br /> X=35 H FOR UNRESTRAINED CONDITIONS 11 r o g <br /> IN THE OUTWASH LAYER I I J <br /> I— <br /> X=55 H FOR FULLY RESTRAINED CONDITIONS I I v <br /> 4 it0 <br /> FOR MAXIMUM BACKSLOPE 1.5H:1V I I N z <br /> SURCHARGE= 1/2 SLOPE HEIGHT tl , <br /> 350(D-2) <br /> PASSIVE PRESSURE ACTS <br /> OVER TWICE PILE DIAMETER <br /> PASSIVE PRESSURE TRUNCATED <br /> NOTES: 2 FEET BELOW BASE OF EXCAVATION <br /> 1. SOLDIER PILE EMBEDMENT DEPTH"D"SHOULD CONSIDER NECESSARY VERTICAL CAPACITY,KICKOUT,AND <br /> OVERTURNING RESISTANCE. <br /> 2. ALL TIEBACK ANCHORS-IF USED-SHALL BE PRESTRESSED TO 130 PERCENT OF DESIGN LOAD AND LOCKED OFF AT <br /> 100 PERCENT OF DESIGN LOAD. AT LEAST TWO ANCHORS ON EACH SIDE OF THE EXCAVATION SHALL BE PRESTRESSED <br /> TO 200 PERCENT AND MONITORED FOR CREEP. TIE-BACK ANCHOR ZONE IS TO BE LOCATED BEHIND THE NO-LOAD ZONE. <br /> 3. ALLOWABLE TIEBACK-SOIL ADHESION=2KSP FOR THE DENSE GLACIAL TILL. <br /> 4. PASSIVE PRESSURES INCLUDE A FACTOR OF SAFETY OF 1.5. <br /> 5. ALLOWABLE SKIN FRICTION OF SOLDIER PILE-2 KSF OVER DEPTH"D-2". ALLOWABLE END BEARING=20 KSF <br /> CONCRETE BACKFILL. <br /> 6. DIAGRAM DOES NOT INCLUDE HYDROSTATIC PRESSURES AND ASSUMES WALLS ARE SUITABLY DRAINED TO PREVENT <br /> BUILDUP OF HYDROSTATIC PRESSURE WITH NO SLOPE AT TOP OF WALL. <br /> 7. DIAGRAM IS ILLUSTRATIVE AND NOT REFERENCED TO A PARTICULAR LOCATION. <br /> 8. DIAGRAM DOES NOT INCLUDE PRESSURES DUE TO SURFACE SURCHARGES FROM ANY ADJACENT STRUCTURES. <br /> THESE PRESSURES MUST BE PROVIDED BY THE STRUCTURAL ENGINEER. <br /> 9.BASE OF EXCAVATION SHALL BE DEFINED AS THE FOUNDATION SUBGRADE ELEVATION ®. <br /> 3 <br /> a, <br /> associatedi. 0111 *., <br /> s <br /> 4 earth sciences <br /> U- <br /> , <br /> 8 <br /> 4, <br /> W <br /> i SOLDIER PILE RETAINING WALL <br /> DESIGN CRITERIA <br /> i 3 2721 WETMORE <br /> N EVERETT, WASHINGTON <br /> N <br /> m PROJ NO. I DATE: FIGURE. <br /> i 190168E001 8/19 I 3 <br />