Chance Technical Design Manual

GRADE FROST WALL

SEE TABLE FOR TOP & BOTTOM REINFORCING (SPLICE TOP AT MID-SPAN OF PILES; SPLICE BOTTOM OVER PILE)

#4 @ 20” EACH FACE AS REQ.

BACKFILL

10” MIN

FROST DEPTH +6” (MIN)

SEE TABLE FOR STIRRUPS (VERT. REINFORCEMENT)

PERIMETER DRAIN

10”

CHANCE® HELICAL PILE

4” VOID FORM UNDER FOOTING (EXPANSIVE SOILS ONLY)

GRADE FROST WALL REINFORCING STEEL CONFIGURATION (SEE TABLE 4-12) FIGURE 4-13

LOAD DETERMINATION

18”

GRADE FROST WALL REINFORCING STEEL CONFIGURATION, TABLE 4-12

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.)

3’ 4’ 5’ 3’ 4’ 5’ 3’ 4’ 5’ 3’ 4’ 5’

2 - #5 2 - #4 2 - #4 2 - #6 2 - #5 2 - #5 2 - #7 2 - #6 2 - #6 2 - #8 2 - #8 2 - #7

2 - #6 2 - #5 2 - #4 2 - #7 2 - #6 2 - #5 2 - #7 2 - #7 2 - #7 4 - #6 2 - #8 2 - #8

2 - #6 2 - #6 2 - #5 2 - #7 2 - #7 2 - #6 2 - #8 2 - #8 2 - #7 4 - #7 4 - #7 4 - #7

2 - #7 2 - #6 2 - #5 2 - #8 2 - #8 2 - #7 4 - #6 2 - #8 2 - #8

2 - #7 2 - #7 2 - #6 2 - #8 2 - #8 2 - #7 4 - #7 2 - #8 4 - #6

8’

#3 @ 15”

#3 @ 15”

#3 @ 15”

#3 @ 15”

#3 @ 15”

10’

#3 @ 15”

#3 @ 15”

#3 @ 15”

#3 @ 15”

#3 @ 15”

12’

#3 @ 15”

#3 @ 15”

#3 @ 15”

#3 @ 15”

#3 @ 15”

4 - #8 #3 @ 12” 4 - #8 #3 @ 9”

15’

#3 @ 15”

#3 @ 15”

#3 @ 15”

4 - #7 4 - #7

4 - #8 4 - #7

#3 @ 15”

#3 @ 15”

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