Why pile head is removed?

Pile Chipping is the extra pile that is above the cutoff level, which provided for good and sound concrete. The main purpose of chipping is to remove the surplus slushy concrete (a mixture of concrete, slurry, and mud) over the cutoff level. When concreting is going on, the black slush comes out from the borehole.

What is the tool used to cut the pile head?

Pile Head Trimming Using Hand-Held Pneumatic Jack Hammer (w/ Compressor) Option 2 – After the cut-off-level has been marked on the piles, a handheld Pneumatic Jack Hammer with compressor shall be used to break and remove the concrete above the pile cut-off level.

How do you cut concrete piles?

The most basic method of breaking down piles is to utilise either hand held (Light) breakers or plant mounted pneumatic (Heavy) breakers. This method may be the easiest to specify and takes little initial planning.

How is pile cap length calculated?

Worked Example: Design of Pile Cap consider 150mm offset from the pile and space between piles as 2.5 times pile diameter. Effective depth, d = 1000-50-20/2 = 940 mm > 750mm; (2.5×600/2) Ok. The critical section of the pile shall be considered as 20% of the diameter of the pile inside of the face of the pile.

What is pile cap made of?

They are formed by long, slender, columnar elements typically made from steel or reinforced concrete, or sometimes timber. A foundation is described as ‘piled’ when its depth is more than three times its breadth.

Is code for pile boring?

Following are the Indian Standard Codes on Pile Foundations: IS 2911 : Part 1 : Sec 1 : 1979 Driven cast in-situ concrete piles. IS 2911 : Part 1 : Sec 2 : 1979 Bored cast-in-situ piles. IS 5121 : 1969 Safety code for piling and other deep foundations.

What level do you cut a pile?

Pile cut-off level is the actual level at which the concrete piles are placed underneath the pier so they can retain the same level. Pile cut-off level is provided in the specifications drawings, normally around 75mm.

What is pile cropping?

Pile cropping also referred to as pile cutting or pile breaking is the process of removing or cropping concrete piles without damaging the embedded rebar. Traditionally concrete cropping was performed with a jackhammer, but this approach left operatives injured and the embedded steel being damaged.

What is a pile cap in construction?

Pile caps are constructed by excavating an area around the group of piles to enable formwork to be inserted. A reinforcement cage is then built and positioned in the formwork cast box and fastened to the piles. The concrete is then poured and left to cure, after which the formwork is removed..

What is pile cap in construction?

A pile cap is a thick concrete mat that rests on concrete or timber piles that have been driven into soft or unstable ground to provide a suitable stable foundation. The cast concrete pile cap distributes the load of the building into the piles.

What is meant by pile cap Why is it used?

What’s the cut off level for a pile cap?

Pile Cut-off level is the actual level at which the piles below pier are made to be of the same level. The concrete of pile is cut-off at the specified level (given in the specifications or drawings usually around 75 mm) while the steel is kept projected in-to the pile cap to make an effective bond. Excavation for Pile chipping

What’s the proper way to cut a pile?

To prevent any damage to the pile at the cut off level, a second ring shall be cut 70 mm above the first. The second ring shall act as a marker for the cutting by jack hammers to stop. The last 70 mm shall be removed using only light breakers.

Which is the best company to cut pilings?

Imagine saving significant amounts of time and money on your next piling projects. Coastal Pile Cutters International, LLC is here to make that possible. As a pile cutting company, we excel in cutting bridge, dock, and pier pilings.

What is the pile head trimming / cut off method statement?

What is the pile head trimming /cut off method statement? Pile head trimming or cut off method statement is the documentation requirement related to piling works methodology submitted to the project consultant for approval prior to proceeding with its implementation.