Advantages of Sheet Piling
On projects where, lateral earth retention and/or an impermeable barrier to groundwater flows is required the advantages of sheet piling include both economical and viable solutions to the problem.
Sheet piling has a wide range of applications for a variety of construction projects including:
- Permanent Retaining Walls
- Permanent Basements
- Temporary Cofferdams
- Cut off Walls
- Bridge Abutments
- Quay Walls
Some of the main advantages of sheet piling include:
- Provide a cost-effective alternative to contiguous and secant concrete walls.
- Excavation can proceed immediately following installation thus reducing programme times.
- Able to provide both temporary and permanent earthworks support.
- Environmental benefits since sheet piling is reusable and recyclable.
- Provides an impermeable barrier against water ingress to excavation works.
- Sheet piles can be installed using silent and vibrationless methods.
- Greater retained heights can be accommodated by utilising temporary or permanent ground anchors.
- High rates of installation production achievable when compared to other solutions.
- When used for permanent basement applications then axial loading and welding watertight interlocks can be provided.
- Sheet piling can be installed in restricted access locations.
Sheet piling can be installed using a variety of different techniques depending on the conditions and requirements of the project.
Telescopic Leader Rigs
Telescopic Leader Rigs are the most common and economically viable method of sheet pile installation. Sheet piles are installed using a vibratory hammer which can provide variable moment and variable frequency options to ensure optimum outputs are achieved for all ground conditions.
Silent Vibrationless Pile Press
Silent Vibrationless Pile Press are utilised where noise and vibration created by conventional vibratory piling is not acceptable. Such projects are often located in environmentally sensitive areas such as urban locations, hospitals or adjacent structures. The system works by hydraulically jacking the sheet piles into the ground with up to 150te of pressing force. The system is most suited to sheet pile driving in cohesive soils although granular soils can be accommodated by utilising preaugering and water jetting techniques.
Conventional Piling is the most established method of sheet pile installation. The method adopts a series of temporary works into which the sheet piles are pitched into a panel before driving with either a vibratory or percussive hammer. The sheet piles and piling equipment are handled by a suitable crawler crane. The method is beneficial for installing piles into problematical ground conditions or where strict installation tolerances are required.