What is precast reinforced concrete pile?

What is precast reinforced concrete pile?

Precast concrete piles are used when soil conditions are not adequate for spread footings. The piles are used to support the rest of the bridge structure upon the soil. This system provides a driven pile instead of a cast-in-place concrete pile. Cast-in-place piles require more time and preparation.

Can concrete piles be driven?

Piles can be driven to depths of 50 metres depending on soil conditions and carry high individual loads or can be grouped together for heavier loads. Avopiling have hydraulic impact hammers that can drive precast piles.

How a precast concrete displacement pile may be installed?

Piles are driven into the ground using a top driven hydraulic hammer, the hammer drives the piles into the ground which compacts and densifies the surrounding ground. Driven precast concrete piles generate zero spoil as they are a displacement pile, moving the ground beneath the surface.

What is a driven pile?

A Driven Pile is a deep foundation that is constructed by driving a concrete, steel or timber pile to support the anticipated loads in competent subsurface material.

How long are precast concrete piles?

Precast piles are available in sizes ranging from 12 to 24 in. and in lengths up to about 100 ft. The optimum pile load ranges from 40 to 60 tons and extends beyond 100 tons per pile for the larger sections.

What are the advantages of precast concrete piles?

Precast foundation piles have many advantages: being much faster foundation time, highest foundation quality, real-time load test etc., but most importantly precast piling is a cost effective and environmental friendly method to install concrete foundation.

How deep should piles be driven?

Usual depths for concrete precast piles range from a few meters to around 30 m, but under special circumstances piles have been driven down to 150 m! Steel circular piles in offshore works can go much deeper.

What is the difference between driven piles and bored piles?

A driven pile is formed off-site under factory-controlled conditions and a bored pile is manufactured on site and in place. Driven piles are sometimes referred to as displacement piles because in the process of driving the pile into the ground, soil is moved radially as the pile shaft enters the ground.

What are the methods of pile driving?

One type of pile driver uses a weight placed between guides so that it can slide vertically. It is placed above a pile. The weight is raised, which may involve the use of hydraulics, steam, diesel, or manual labour. When the weight reaches its highest point it is released, and hits the pile, driving it into the ground.

How are precast piles installed?

Precast concrete piles are installed in the ground by using pile driving equipment. Due to the possibility of carrying vertical and horizontal loads as well as bending moments, precast piles are used for the foundation of all sorts of engineering structures under virtually every soil conditions.

How the concrete pile is driven in the ground?

Prefabricated piles are driven into the ground using a pile driver. Driving piles, as opposed to drilling shafts, is advantageous because the soil displaced by driving the piles compresses the surrounding soil, causing greater friction against the sides of the piles, thus increasing their load-bearing capacity.

What are the advantages & disadvantages of precast concrete piles?

Disadvantages of Precast Concrete Piles

• Being very heavy, transporting, handling and driving theme is very hard.
• extra steel must be provided near the top and bottom of the piles, in order to avoid the stresses developed during handling and driving.

What does precast mean in construction?

Precast construction is the manufacturing of products in a pre-made cast or mold and then, after being cured in a controlled environment, transporting it to the construction site for final assembly. Prefabricated construction is the assembly…

Can You pour concrete over existing concrete?

The key to successfully pouring concrete over an existing concrete surface is to ensure the two layers bond properly. Even though concrete is strong and forms a hard structure, there’s nothing in it that helps it stick to old concrete. A commercial bonding agent helps with that.

What is a precast floor?

Precast is a concrete block or slab that Concord Terrazzo Company creates and then transports the materials to the project site for installation. Precast terrazzo shares the same properties as a poured-in-place terrazzo floor. To form precast, a combination of aggregates is used with either an epoxy or cement binder.