 |
 |
 |
 New Hampshire Concrete Cutting 210 Walnut St, Manchester, NH 03104 Call Now 603-622-4440 Concrete Cutting - Core Drilling - Wall Sawing - Flat Sawing |
 |
 |
||||
 |
|
Concrete Cutting Sawing Candia NH New HampshireWelcome
to affordableconcretecutters.net
“We
Specialize in Cutting Doorways and Windows in Concrete Foundations”
Are You in Candia New Hampshire? Do You
Need Concrete Cutting?
We Are Your Local
Concrete Cutter
Call 603-622-4440
We Service Candia NH
and all surrounding Cities & Towns
“No Travel Charges – Ever! Guaranteed!”
Candia: A Well Developed Town In New Hampshire
We provide core
drilling and coring to Candia NH.
This
may be done by driving a large number of concrete piles into the soil,
especially if the concrete piles will be always under the water line in that
ground. Driving the concrete piles compresses the soil; and if the concrete
piles are always under water, they will be free from decay. If the soil is
sufficiently firm so that the pile can be withdrawn and the hole will retain
its concrete forms even temporarily, it is better to draw the pile and then
immediately fill the hole with sand, which is rammed into the hole as compactly
as possible. This gives us a type of piling known as sand concrete piles. Soft,
clayey subsoil may frequently be improved by covering it with gravel, which is
rammed and pressed into the clay. Such a device is not very effective, but it
may sometimes be sufficiently effective for its purpose. Subsoil is often very
soft because it is saturated with water which cannot readily escape. Frequently
a system of deep drainage which will reduce the natural level of the
ground-water considerably below the desired depth of the bottom of the
foundation, will transform the subsoil into a dry, firm soil which is amply
strong for its purpose. Even when the subsoil is very soft, it will sustain a
heavy load, provided that it can be confined. While excavating for the
foundations of the tower of Trinity Church in New York City, a large pocket of
quicksand was discovered directly under the proposed tower. Owing to the volume
of the quicksand, it was found to be impracticable to drain it all out; but it was
also discovered that the quicksand was confined within a pocket of firm soil. A
thick layer of concrete was then laid across the top, which effectively sealed
up the pocket of quicksand, and the result has been perfectly satisfactory. The
preparation of a rock bed on which a foundation is to be placed is a simple matter compared with that required for some soils on which foundations are
placed. The bed-rock is prepared by cutting away the loose and decayed portions
of the rock and making the plane on which the foundation is placed
perpendicular to the direction of the pressure. If the rock bed is an inclined
plane, a series of steps can he made for the support of the foundation. Any
fissures in the rock should he filled with concrete. Whenever it is necessary
to start the foundation of a structure at different levels, great care is
required to prevent a break in the joints at the stepping places. The
precautions to be taken are that the concrete-joints must be kept as thin as
possible; the lower part of the foundations should be laid in cement concrete;
and the work should proceed slowly. By following these precautions, the
settlement in the lower part will be reduced to a minimum. •These precautions
apply to foundations of all classes. Under this heading is included hard clay,
gravel, and clean, dry sand. The bed is prepared by digging a trench deep
enough so that the bottom of the foundation is below the frost line, which is
usually 3 to 6 feet below the surface. Some provision, similar to that shown in
Fig. 35, should he made for drainage. Care should be taken to proportion the
load per unit of area so that the settlement of the foundation will be uniform. Are You in Candia New Hampshire? Do You
Need Concrete Cutting?
We Are Your Local
Concrete Cutter
Call 603-622-4440
We Service Candia NH
and all surrounding Cities & Towns
|
