Sheet piles techniques can be split into 2 categories: displacement and replacement. Each has its advantages and disadvantages but we can find the right solution for your sheet piles needs. Not all sheet piles jobs are the same and they don't always fit neatly into the following categories so we will be happy to discuss your sheet piles requirements depending upon the particular circumstances of your project.
In simple terms, during the displacement sheet piles method, piles are driven into the ground pushing the ground out of the way, as you would see in sheet piles. Displacement sheet piles is good for e.g. contaminated sites where it costs a lot to take the spoil away.
Using the replacement sheet piles method, muck is dug out and replaced with the pile. We can use far bigger piles using replacement sheet piles.
Displacement Sheet Piles Methods Are Typically:
- • Pre cast concrete driven piles
- • Thick wall driven steel tubes
- • Thin wall bottom driven piles
- • Timber piles
- • Screw piles
- • Helical displacement piles
- • Vibro concrete columns (drive cast insitu)
The advantages of displacement sheet piles are:
- • Self testing as driven to refusal or "set"
- • No pile arisings to dispose of
- • Little disturbance
- • Limited access
- • High production
Replacement Sheet Piles Techniques Are Typically:
- • Open hole auger piles
- • Continuous flight auger (CFA)
- • Large diameter rotary piles
- • Odex piles
- • Tripod piles
The advantages of replacement sheet piles are:
- • Effectively vibration free
- • Installed into non cohesive and water bearing soils
- • High production
- • Restricted access
This article comes from aeyates edit released