Chance Technical Design Manual
GARDEN LEVEL WALL
SUPPORT TOP OF WALL WITH ADEQUATE ANCHOR BOLTS AND FRAMING
SEE TABLE FOR TOP & BOTTOM REINFORCING (SPLICE TOP AT MID-SPAN OF PILES; SPLICE BOTTOM OVER PILE)
#4 @ 20” EACH FACE AS REQ.
BACKFILL
3’ TO 5’ BELOW GRADE
SEE TABLE FOR STIRRUPS (VERT. REINFORCEMENT)
10” MIN
FROST DEPTH +6” (MIN)
4” MIN
PERIMETER DRAIN
16” MIN
10”
4” VOID FORM UNDER FOOTING (EXPANSIVE SOILS ONLY)
CHANCE® HELICAL PILE
GARDEN LEVEL WALL REINFORCING STEEL CONFIGURATION (SEE TABLE 4-11) FIGURE 4-12
18”
GARDEN LEVEL WALL REINFORCING STEEL CONFIGURATION, TABLE 4-11
TOTAL FOUNDATION LINE LOAD
3,000 (lb/ft)
4,000 (lb/ft)
5,000 (lb/ft)
6,000 (lb/ft)
7,000 (lb/ft)
PILE SPACING
WALL HEIGHT
STEEL REINFORCING BARS REQUIRED
TOP & BOTTOM
STIRRUP (O.C.)
TOP & BOTTOM
STIRRUP (O.C.)
TOP & BOTTOM
STIRRUP (O.C.)
TOP & BOTTOM
STIRRUP (O.C.)
TOP & BOTTOM
STIRRUP (O.C.)
LOAD DETERMINATION
3’ 4’
2 - #5 2 - #4
2 - #6 2 - #5
2 - #6 2 - #6
2 - #7 2 - #6
2 - #7 2 - #7
#3 @ 15”
#3 @ 15”
#3 @ 15”
#3 @ 15”
#3 @ 15”
8’
5’ 2 - #4 #3 @ 12” 2 - #4 #3 @ 12” 2 - #5 #3 @ 12” 2 - #5 #3 @ 12” 2 - #6 #3 @ 12”
3’ 4’
2 - #6 2 - #5
2 - #7 2 - #6
2 - #7 2 - #7
2 - #8 2 - #8
2 - #8 2 - #8
#3 @ 15”
#3 @ 15”
#3 @ 15”
#3 @ 15”
#3 @ 15”
10’
5’ 2 - #5 #3 @ 12” 2 - #6 #3 @ 12” 2 - #6 #3 @ 12” 2 - #7 #3 @ 12” 2 - #7 #3 @ 12”
3’ 4’
2 - #7 2 - #6
2 - #7 2 - #7
2 - #8 2 - #8
4 - #6 2 - #8
4 - #7 2 - #8
#3 @ 15”
#3 @ 15”
#3 @ 15”
#3 @ 15”
#3 @ 15”
12’
5’ 2 - #6 #3 @ 12” 2 - #7 #3 @ 12” 2 - #7 #3 @ 12” 2 - #8 #3 @ 12” 4 - #6 #3 @ 12”
4 - #7 4 - #6
4 - #8 #3 @ 10” 5 - #8 #3 @ 9” 4 - #7 #3 @ 15” 4 - #8 #3 @ 15”
3’ 4’
2 - #8 2 - #8
4 - #6 2 - #8
#3 @ 15”
#3 @ 15”
#3 @ 15”
15’
5’ 2 - #7 #3 @ 12” 2 - #8 #3 @ 12” 4 - #7 #3 @ 12” 4 - #7 #3 @ 12” 4 - #7 #3 @ 12”
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