176 Section 4 Reading Prints
Caissons
Caissons are also drilled, and are usually from
18″–72″ in diameter, Figure 10-9. Caissons are drilled
to design depth. The drill is then removed and the
bottom of the caisson tested for soil load capacity.
After the hole passes inspection, a steel reinforcing
cage is installed, and the hole is fi lled with concrete.
Steel Piles
A steel pile is a long H-shaped (H-pile) or
round (pipe pile) steel member that is hammer-
driven into the earth. The pile is driven to a suitable
5'-8"
44"
36"
23"
RAISED HEARTH
FRONT ELEVATION
PLAN VIEW
16"
20"
FACE BRICK
FIRE BRICK
3'-0"
1'-4"
PINE LOG STONE
12"
14"
29"
21"
27"
12"x12" FLUE LINER
ASH PIT
FIRE BRICK
3 1/2" CONC. SLAB
WITH #4 BARS
6" O.C. EACH WAY
12"X8" ASH
PIT DOOR
8" CONC. WALL
4'-0"X7'-0"X12"
CONC. FTG.
#4 BARS
12" O.C. EACH WAY
SECTION
RUBBLE
FILL
FROST
LINE
20"
HEARTH
3'-0"
84"3
16"
Figure 10-6.
Plan, elevation, and sectional views of a fi replace. The sectional view provides the needed
construction details and dimensions.
Figure 10-7.
A grade beam serves as a building support.
(2) #5 Continuous
Earth provides
the form for
the concrete
Grade