Understanding Concrete Cased Piles

A Concrete Cased Pile is a type of foundation pile constructed using a permanent or temporary casing driven into the ground, which is subsequently filled with concrete. The casing serves as a mould for the concrete.

Analysis of Pile Types

Let's examine the given options to determine which ones fit the definition of a Concrete Cased Pile:

• Raymond Pile: This pile type involves driving a corrugated steel shell (casing) into the ground. The shell remains in the ground as a permanent casing and is then filled with concrete. Therefore, it is a prime example of a Concrete Cased Pile.
• Swage Pile: Swage piles are formed by joining sections of steel tubes, often through a process called swaging. These piles are driven into the ground and typically filled with concrete. The steel tube acts as a casing, making it a Concrete Cased Pile.
• Vibro Pile: Vibro piling often involves driving a tube using vibration. While concrete is used, the term frequently refers to piles formed in-situ where a permanent metallic casing might not be a defining feature, or the method focuses on soil displacement. It is less commonly categorized strictly as a 'concrete cased pile' compared to Raymond or Swage piles.
• Simplex Pile: This is a cast-in-situ pile constructed by driving a steel tube with a shoe. The tube is filled with concrete, and then withdrawn while concrete is added. Although it uses a casing during construction, the casing is temporary and removed, distinguishing it from piles where the casing is permanent.

Conclusion on Concrete Cased Piles

Based on the typical definition where a casing forms an integral part (permanent or significant) of the pile structure filled with concrete, Raymond Pile and Swage Pile are clear examples of Concrete Cased Piles.