Methods of Piling

Other Methods of Piling 1. Jetting Piles - water jetting may be used to aid penetration of a pile into a sand gravel stratum. It is ineffective infirm to stiff clay or soils containing much coarse gravel, cobbles or boulders. 2. Pile Driving by Vibration - vibratory methods of driving sheet piles or bearing piles best suited to sandy or gravelly soils. Pile driving vibrators consist of pair or exciters mounted on the vibrator unit, the motors of each pair rotating in opposite directions. The amplitude of vibrations is sufficient to break down the skin friction on the sides of the pile. Vibrators will drive steel piles through loose to...

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Pile Driving Equipment

Pile Driving Equipment 1. Piling Rigs. Piling Rigs consist of a set of leaders mounted on a standard crane base. The leaders consist of a stiff box or tubular member which carries and guides the hammer and the pile as it is driven into the ground. The leaders can be raked backwards and forwards by screw or hydraulic adjustment of the back stay and lower attachment to the base machine. 2. Piling Winches. Winches operating with pile frames mounted on barges or fixed stagings may be powered hydraulically or by steam, diesel pr petrol engines, or electric motor. Steam powered winches are commonly used where steam is also used for the piling...

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Piles

Piles Piles are used to transmit foundation loads through strata of low bearing capacity to deeper soil or rock strata having a high bearing capacity. Piled are also used in normal ground condition to resist heavy uplift forces or in poor soil condition to resist horizontal loads. Piles are convenient method of foundation construction works over water such as bridge piers or jetties. Classification of Piles Piles are classsified according to their carrying capacity, 1. End-bearing Piles - carrying capacity derived from toe of the piles. 2. Friction Piles - are piles which derive their carrying capacity by skin friction or adhesion. the piles...

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