When you are planning for the installation of CFA Piling, you should consider some important factors. For instance, you must be sure that the piles you are going to install are made from steel that is able to handle high load bearing, shear and movement capacities. The materials you use should also be able to withstand strong vibrations. You should also remember that you need driven steel casings and the equipment used must be lightweight and balanced.
Bottom Drive CFA equipment is lighter and more balanced
For example, the Bottom Drive CFA system has more than a few enticing features. Among them, the High Pressure Swivels make injection of a variety of media a cinch. Similarly, the telescopic rod is both lightweight and user friendly. Lastly, the system is designed to perform well in both the wet and dry conditions. The latter is a big deal because most of the country has some type of moisture problem. In short, the Bottom Drive CFA has everything a jack of all trades needs to be successful. As a result, the system is one of the industry’s most productive and cost effective solutions. Moreover, the system’s small size and weight make it a cinch to transport. So, the next time you are looking to reshape your yard or your office building, the Bottom Drive CFA may be just the ticket. Aside from its many merits, the system is also a breeze to maintain and service.
Low noise levels
Continuous Flight Auger (CFA) piling is a technique for producing foundation piles. Unlike bored or driven piles, CFA does not require a steel casing. It is therefore suitable for installation in water-bearing soils. The process is also suitable for environmentally sensitive areas.
The benefits of using CFA piling include low noise and vibration levels. It is particularly effective for reducing disturbance to adjacent structures.
The process involves a helical auger being used to drill a hole into the ground. This is then rotated into the soil at the design depth. Once the hollow stem of the auger is inserted into the soil, a concrete mix is pumped through. Concrete is then injected to fill the cavity.
Continuous Flight Auger Piling is typically used for structures that are below the water table. Depending on the type of soil, the level of ground-borne vibration can vary significantly.
Due to its simplicity, CFA piling is a common method of piling. However, it is important to choose a competent company. Experienced companies understand the differences between different soils and ground types.
High load-bearing, shear and movement capacities
When you are designing a pile, you need to consider a number of factors. For example, you need to know how much load the pile can bear. Generally, it is a good idea to consider the strength of the rock in which the pile is installed. This will provide additional support.
In addition, you may want to know how much the pile can move. The movement of a pile depends on the rate at which it mobilises its resistance. There are several methods available for determining this. Some researchers use empirical correlations, while others use curve-fitting processes.
One of the most significant advances in the field of pile design has been the development of instrumented model piles. These simulated the entire stress history of a pile, and measured radial effective stresses. It was found that the radial effective stresses mobilised similarly regardless of the installation method used.
Another advance was the development of a direct shear apparatus for providing the correct boundary condition. As a result, a pile could be modelled as a volume element, making it easier to study its behaviour.
Requires driven steel casings
When a structure is built on a brown field site, driven steel casings are a good choice for bearing piles. They are especially useful for foundation applications where the soil is contaminated. The installation process of this type of piling requires minimal noise and vibration. It also allows for deep foundations.
CFA piles are the most common type of pile used for foundations. They are made by drilling a hole into the ground and inserting a steel reinforcing cage. Concrete is then pumped through the hollow stem of the auger. This process is repeated several times to create the pile.
CFA piles have a lower vibration level than any other piling method. However, this type of pile construction is costly. Typical production rates are from 1,000 to 1,500 feet per day. For transportation projects, the production rate is expected to be less.
CFA piles are a viable alternative to conventional piles, particularly in urban areas. They are environmentally friendly and are designed to be constructed using recycled materials.