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Concrete Cutting Sawing Francetown NH New Hampshire

Welcome to AffordableConcreteCutting.Net

“We Specialize in Cutting Doorways and Windows in Concrete Foundations”

Are You in Francetown New Hampshire? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 603-622-4441

We Service Francetown NH and all surrounding Cities & Towns

“No Travel Charges – Ever! Guaranteed!”

 

Concrete Cutting Francetown NH           

Concrete Cutter Francetown NH 

Concrete Coring Francetown NH            

Core Drilling Francetown NH                   

Concrete Sawing Francetown NH

Concrete Sawing Francetown New Hampshire

Concrete Cutting Francetown New Hampshire

Concrete Cutter Francetown New Hampshire  

Concrete Coring New Hampshire           

Core Driller Francetown NH                     

Core Drilling Francetown New Hampshire                    

The water returns to the surface along the sides of the pile and thus reduces its frictional resistance. The water also softens and scours out the soil immediately underneath the pile, and enables the pile to penetrate the soil much more easily. In very soft soils, concrete piles may be thus driven by merely loading a comparatively small weight on top of the pile while the force pump is being operated; and yet the resistance shortly after stopping the pump will be found to be very great. Of course the only method of testing such resistance is by actually loading a considerable weight on the pile. This method of using a water-jet is chiefly applicable in structures which are on the banks of streams or large bodies of water. The water-jet and the hammer are advantageously used together, especially in stiff clay. On account of the comparatively slight resistance offered by concrete piles in swampy places, it sometimes becomes necessary to splice two concrete piles together. The splice is often made by cutting the ends of the concrete piles perfectly square so as to make a good butt joint. A hole 2 inches in diameter and 12 inches deep is bored in each of the butting ends, and a dowel-pin 23 inches long is driven in the hole bored in the first pile; the second pile is then fitted on the first one. The sides of the concrete piles are then flattened, and four 2 by 4- inch planks, 4 to 6 feet long, are securely spiked on the flattened sides of the concrete piles. Such a joint is weak at its best, and the power of lateral resistance of a joint pile is less than would be expected from a single stick of equal length. Nevertheless, such an arrangement is in some cases the only solution. One practical trouble in driving concrete piles, especially those made of soft wood, is that the end of the pile will become crushed by the action of the heavy hammer. Unless this crushed material is trimmed off the head of the pile, the effect of the hammer is largely lost in striking this cushioned head. This crushed portion of the top of a pile should always be cut off just before the test blows are made to determine the resistance of the pile, since the resistance of a pile indicated by blows upon it, if its end is finished, will apparently be far greater than the actual resistance of the pile.

Another advantage of the steam pile-driver is that it does not produce such an amount of finish as is caused by the ordinary pile-driver. Whenever the hammer bounces off the head of the pile, it shows either that the fall is too great or that the pile has already been driven to its limit. Whenever the pile refuses to penetrate appreciably for each blow, it is useless to drive it any further, since added blows can only have the effect of crushing the pile and rendering it useless. It has frequently been discovered that concrete piles which have been hammered after they have been driven to their limit, have become broken and crushed, perhaps several feet underground. In such cases, their supporting power is very much reduced. Usually about two inches of the head is chamfered off to prevent this bruising and splitting in driving the pile. A steel band 2 to 3 inches wide and to 1 inch thick, is often hooped over the head of the pile to assist in keeping it from splitting. These devices have led to the use of a cast-iron cap for the protection of the head of the pile. The cap is made with two tapering recesses, one to fit on the chamfered head of the pile, and in the other is placed a piece of hardwood on which the hammer falls. The cap preserves the head of the pile. When the concrete piles have been driven, they are sawed off to bring the top of them to the-same elevation so that they will have an even bearing surface. When the tops of the concrete piles are above water, this sawing is usually clone by hand; and when under water, by machinery.

Are You in Francetown New Hampshire? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 603-622-4441

We Service Francetown NH and all surrounding Cities & Towns