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 New Hampshire Concrete Cutting 210 Walnut St, Manchester, NH 03104 Call Now 603-622-4440 Concrete Cutting - Core Drilling - Wall Sawing - Flat Sawing |
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Concrete Cutting Sawing Greenfield NH New HampshireWelcome
to affordableconcretecutters.net
“We
Specialize in Cutting Doorways and Windows in Concrete Foundations”
Are You in Greenfield New Hampshire? Do You
Need Concrete Cutting?
We Are Your Local
Concrete Cutter
Call 603-622-4440
We Service Greenfield
NH and all surrounding Cities & Towns
“No Travel Charges – Ever! Guaranteed!”
Greenfield New Hampshire One Of The Greatest City The
image shows the cross-section of a Concrete pile used in the foundations of the
buildings for the Simmons Hardware Company, Sioux City, Iowa, and for John J. Latteman, Brooklyn, N.Y. The pile tapers from 16 inches at
the large end to 11 inches at the small end. The reinforcement consists of
Clinton electrically-welded is usually No. 20 gauge. When it is desirable to
reinforce these concrete piles, the bars are inserted in the shell after the
core has been withdrawn and before the concrete is placed. The different
methods for producing the Simplex pile cover the two general classifications of
concrete piles—namely, those molded in place, and those molded above ground and
driven in with a pile-driver. Fig. 58 shows the standard methods of producing
the Simplex pile. In Fig. 58, A shows a cast-iron point which has been driven
and imbedded in the ground, the concrete deposited, and the concrete forms
partially withdrawn; while B shows the alligator point driving concrete forms.
The only difference between the two concrete forms shown in this figure is that
the alligator point is withdrawn and the cast- iron point remains in the
ground. The concrete in either type is compacted by its own weight. As the concrete
form is removed, the concrete comes in contact with the soil and is bonded with
it. The inherent danger in using this type of pile is that, if a stream of
water is encountered, the cement may be washed out of the concrete before it
has a chance to set. A shell pile and a molded and driven pile are also
produced by the same company which manufactures the Simplex, and are
recommended for use under certain conditions. Any of these types of concrete
piles can be reinforced with steel. This company has driven concrete piles 20
inches in diameter and 75 feet long. In excavating for the foundation of a 16-
story building at 14th Street and 5th Avenue, New York, a pocket of quicksand
was discovered with a depth of about 14 feet below the driven. The work was
done with care, and a direct contact was secured between them, and the finished
lower surfaces of the cast-iron caps, without the intervention of steel shims. A
pile supports a load coming on an area of the foundation which is approximately
proportional to the spacing between the concrete piles. This area, of course,
is several times the area of the top of the pile. It is therefore necessary to
cap at least a group of the concrete piles with a platform or grillage which
not only will support any portion of the load located between the concrete
piles, but which also will tend to prevent a concentration of load on one pile
and will distribute the load more or less uniformly over all the concrete piles.
Sometimes such a platform is made of heavy concrete piles, especially if timber
is cheap; but this should never be done unless the grillage will be always
under water; and even under such conditions the increasing cost of timber
usually makes it preferable to construct the grillage of concrete. A concrete
grillage is usually laid with its lower surface a foot or two below the tops of
the concrete piles. The concrete piles are thus firmly anchored together at
their tops. The thickness of the grillage is roughly proportional to the load
per square foot to be carried. No close calculations are possible; a thickness
of from 2 to 5 feet is usually made. When reinforced-concrete structures are
supported on concrete piles or other concentrated points of support, the heads
of the concrete piles are usually connected by reinforced-concrete concrete
beams, which will be described in Part III. A combination of steel, concrete,
and wooden concrete piles is known as the Cushing pile foundation. A cluster of
concrete piles is driven so that it may be surrounded by a wrought- iron or
steel cylinder, which is placed over them, and which is sunk into the soil
until it is below any chance of scouring action on the part of any current of
water.
Are You in Greenfield New Hampshire? Do You
Need Concrete Cutting?
We Are Your Local
Concrete Cutter
Call 603-622-4440
We Service Greenfield
NH and all surrounding Cities & Towns
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