Screw Piles: Analysis, Design, Advantages, Disadvantages, and Installation

Presentation on
Screw Piles
This presentation is focuses on the analysis of screw piles analysis is the
background information of the crew piles, then the introduction of the
screw piles and then the historical perspectives of the screw piles and
their implications. The methods of designing screw piles include bearing
capacity, cylindrical shear model, and axial capacity methods. The axial
piles that are vertically loaded in tension and compression in both
cohesionless soils and cohesion form the primary of the analysis of the
screw piles.

Figure 1: Screw Pile Elements

Advantages and Disadvantages of Screw Piles
The disadvantages and advantages of crew piles are critical in the
determination of the conditions under which they are most suitable and
important compared to other customary methods of piling. Some of the
advantages of crew piles include ease in installation, reusability,
removability, suitable for regions with restricted access, and quick
installation where loaded can follow soon. Despite the advantages
above, the screw piles are faced with numerous disadvantages such as
the assertion of disadvantageous conditions of the soil for the screw
piles like boulders, bedrocks, and rocky soils. However, these
drawbacks can be mitigated by the use of surface with a sharp toe when
rocks that are weak are met to improve the rock passage.