Piling and Boring
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Piled foundations constitut the most commonly applied system of providing a suitable base on ground of poor bearing capacity for heavy buildings and other important structures, like bridges, towers, quay walls, jetties etc. Broadly speaking, piles fall into two main categories, namely preformed and cast-in-situ. For preformed piles, reinforced concrete, tubular steel or sectional steel is normally employed, although timber is still sometimes used, especially for temporary structures. Hollow preformed piles are known as shell piles. The sinking of preformed piles into the ground is usually carried out with a piling plant.
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