Design & Materials
What materials is Surefoot made of?
All Surefoot pile caps are fabricated using 250-grade plates. Their thickness varies, starting with the T150 at 4mm, continuing to the S600 using 10mm. Our driving guides are custom made to suit the micropiles.
What is a Micropile?
One of the main components of Surefoot is the micropile, with each micropile driven into the ground. They work together to resist the loadings applied to the Surefoot pile cap.
Which micropiles can be used?
The size of our micropiles is a standard 32 Nominal Bore pipe with a minimum gauge of 2.6mm, although thicker gauges can be selected. They come in Hot Dipped Galvanized finish.
What are the maximum loads of Surefoot?
Depending on the model used, Surefoot is capable of receiving loads of up to 36 tonnes. Further capacities are achieved by combining models in groups and then joining these with steel subframes. Surefoot is one of the only systems with the capacity to resist high bending moments, meaning they can be used for many purposes beyond typical construction. These include communication towers, masts and wind turbines.
What is the corrosion capacity of Surefoot?
Depending on specific project soil and environment characteristics, the minimum lifespan of a Surefoot system is over 50 years.
How long does it take to install Surefoot?
The smallest Surefoot T150 and S250 pile caps can be installed in as little as 10 minutes. Installation of the larger capacity caps, S500 and S600, may take between 30 and 45 minutes. This allows for a complete foundation for a home to be installed in under a day with construction commencing that same day!
What equipment is needed to install Surefoot?
A standard jackhammer with a 45 Joule rating is the essential tool required to install Surefoot. Please read our installation manual to see a list of the equipment required.
Can Surefoot be installed on sloped sites
You do not need to level the land to build with Surefoot. The Surefoot system simplifies the construction process and adapts to the land without increasing costs. Surefoot can, therefore, add value to heavily sloped sites that were traditionally prohibitively and costly to build on.
How do I avoid existing infrastructure and cabling?
When installing Surefoot in dense urban and industrial areas, it is essential to obtain plans for existing infrastructure. If these are not available, cabling and pipes can be located with a basic CAT scanner. Once it has been located, you have two options: either change the location of the Surefoot footing to avoid the infrastructure or use a 2 or 3-way Surefoot model that has the driving directions of the micropiles changed.
Avoiding services, obstacles and boundary conditions?
By using the 2 or 3-way Surefoot bases with the correct micropile directions, installation can avoid known obstacles such as foundations of existing buildings.
Can Surefoot be used in loose sand/soft clay?
Depending on the applied loadings, Surefoot footings can be used in many applications with low capacity soils. The Surefoot system allows for the use of micropile extensions to drive the piles further into a soil layer that has a higher resistance value.
Can Surefoot be used in reactive soils?
By referring closely to each soil test, our engineering team is able determine the appropriate pile embedment to minimise the impact of the seasonal movement in soils.
Can Surefoot be used in rocky soils?
Depending on the applied loadings and the type of rock encountered, our Engineering team can assess the best foundation solution in soils with rock layers. Please read our Rock Policy in our installation manual.
Can Surefoot be used in Saline or Acidic soils?
When dealing with marine or very aggressive environments, Surefoot can be manufactured in Stainless Steel. Pile caps can also be coated with marine-grade coatings.
Has Surefoot been tested?
Surefoot has been officially tested for compliance with European, Australian and International standards. In Australia, it has been tested for research and innovation purposes by Swinburne University. It has been certified in Europe by Lloyd’s Registry to comply with all relevant Euro Codes. Also, Surefoot has conducted many unofficial tests over the years for internal research. For more information regarding certifications, please contact our engineering and design team.
What is needed to get a Surefoot design?
For quotation purposes, we only require a basic diagram of the structure and a description of the project’s location and soil type. This service is free of charge. For certification purposes, we require certified drawings and a soil test.
EWhat is the environmental impact of Surefoot?
Surefoot does not disturb the land and soil of the job site. There is no need to level, cut and fill or change the landscape (unless specified). It does not disturb natural drainage patterns and is suitable for installation around treed areas avoiding the use of root barrier systems since the piles do not damage the tree roots. Surefoot eliminates, or significantly reduces excavation, even when used in conjunction with concrete.
Surefoot vs. Other Systems
Surefoot vs Concrete
Surefoot offers a superior solution to traditional concrete foundations in many applications. This is especially true when construction is to take place on sloping sites, weak soils or if the structure is subject to large bending moment loads. Surefoot can eliminate or at least significantly reduce excavation and the need for heavy machinery on the job site.
Surefoot vs. Screw piles?
Other steel piling systems such as helical piers and screw piles are relatively expensive solutions that are normally specified when there is a particular construction problem to resolve. Surefoot offers various advantages, including being more precise, featuring higher capacities (price/capacity ratio) and is easier to install. Only small, portable tools are needed – no special drilling augers or other equipment are required. Surefoot is the only system that can compete with concrete in normal building conditions, due to its high capacity in bending moment, which can be very low on screw piles.