A comparative study of the use of replacement pile foundations versus Assignment

A comparative study of the use of replacement pile foundations versus displacement pile foundations - Assignment Example The intention of this study are pile foundations as the structural parts that are involved with carrying and transferring the structural loads to the ground at a depth that is below the surface of the ground. The pile foundation mainly consists of the piles and the pile caps. Piles are long members that are also slender and carry out the function of transferring the loads to deep soils which have high load bearing capacities. Piles are mainly constructed using concrete, wood and steel. They are classified according to various standards which are dependent on the type of soil, material used to construct the pile and the characteristics of the piles to transmit loads. Piles are fixed to the ground through such processes as drilling, jacking, or driving them to connect to the pile caps. In basic point of view terms, piles can be broadly classified into two groups; displacement piles or driven piles and replacement or bored piles. Displacement piles are formed prior to being fixed to the ground through whatever mechanism, be it driving, jacking, screwing or hammering to the ground. Replacement piles are formed after a hole is dug into the ground in which the pile is formed. There are various other modes of classifying piles such as the mode of the load bearing material capacity. This paper will however focus on the replacement vs. the displacement piles. A comparative study of the use of these two types of piles will be given... They are classified according to various standards which are dependent on the type of soil, material used to construct the pile and the characteristics of the piles to transmit loads. Piles are fixed to the ground through such processes as drilling, jacking, or driving them to connect to the pile caps. In basic point of view terms, piles can be broadly classified into two groups; displacement piles or driven piles and replacement or bored piles. Displacement piles are formed prior to being fixed to the ground through whatever mechanism, be it driving, jacking, screwing or hammering to the ground. Replacement piles are formed after a hole is dug into the ground in which the pile is formed. There are various other modes of classifying piles such as the mode of the load bearing material capacity. This paper will however focus on the replacement vs. the displacement piles. A comparative study of the use of these two types of piles will be given (Berezantsev, 1961). Classification of pile s Piles are classified according to various means. This part of the paper will look at the various classification methods. Piles can be classified according to the method used for load transmission and the resulting functional behavior (Whitaker, 1970). Pile classification according to load transmission method In this group of piles, there are three subdivisions; end or point bearing piles, friction or cohesion piles and a combination of both friction and cohesion piles. End bearing piles These types of piles perform load transfer to the firm stratum that is located way deep into the structural base. Most of their carrying capacity results from the resistance to penetration of the soil below them. The figure below shows a