Screw Piles Work Life

Welding

The welding plays an important role in the screw pile industry. The quality of the welding and the steel make the difference between a good and a bad fabricator. 

Welding Screw Piles

AWS D1.1 | AS/NZS 1554 | CAN/CSA W59-13

The MIG welding supposed to be the prime solution to fuse items like helix and the couplers to the main shaft.

The MIG or the Metal Inert Gas welding process uses Carbon and Argon mix and continuous solid wire electrode to fuse the steel surfaces. 

Proper safety measures are a must for the welder to see through the weld glare and safely handle high temperature. If you feel safe, you can be more attentive to what you are doing. After all you are fabricating foundation item which has direct link with the safety of people

AWS D1.1 | AS/NZS1554 | CAN/CSA W59-13

Welding of helix to the central shaft

Welding Screw Piles

It’s advisable to select welders with a minimum 2000 hours of welding experience with MIG. Workshops must be organized periodically to help the welders both experienced and interns get acquainted with the welding standards of different countries followed by discussions about the latest trends and technology in the welding industry. The welding standards must be adhered to with care. 

Work Life

How to ensure a quality fabrication

Almost 3 years 3 months ago I started my professional life with Screw Piles (or helical piles). My initial training taught me that this item is used to make foundations of houses, decks and patios et cetera. The developed countries use this item very much and day by day its use is growing. Since this is a very sensitive item, the quality control HAS to be stringent. A poor item may result in accidents causing harm to human and animals both. 

 

 

It is interesting to spend time in the fabrication house watching the nuts and bolts of the fabrication process of screw piles. The fabrication team is an unison of scores of people committed to individual responsibilities. Knowing the clients' requirements, selecting the quality tubes, inspection before fabrication, a quality fabrication process  and finally surface finish. 

 

 

 

 

 

As a fabricator, one must keep in mind, the piles HAVE to be strong to endure the variable loads for years to come. Staying 'naked' underground subjects them to erosion caused by the soil. Hence the surface protection by galvanization or paint are preferred by some of our clients. 

A thorough manual check after the surface coating is a good practice to ensure the right finishing both in terms of durability and aesthetics. 

Screw Piles

What are Screw Piles?

The history of screw piles dates back to the middle nineteenth century when a blind Irish civil engineer Alexander Mitchell came up with this foundation solution. Screw Piles or Screw Anchors were normally used as pile foundations for light houses and as piers in harbors.

Recently screw piles have happened to offer solutions to industries like the construction industry, railways, telecommunication and many more to come, The benefits are a lot quick and easy installation, less soil displacement, check on the carbon footprints, involvement of less manpower and of course cost effective.

 

 

 

Screw Piles are steel tubes (seamless or ERW) made up of steel and come with 1, 2 or 3 helices (as per your requirement). The pipe with helices is called lead section. The helices act as screw and we need to apply torque to it out that into the ground. A lead section may have 1 or 2 extensions (Extensions : similar steel tube with or without helices attached to the lead section with steel structures called coupler).

Few countries have been using Screw Piles for the foundation construction of wooden houses, decks or patios.

Screw Piles

Why use Helical Piles or Screw Piles for foundation?

Unlike traditional piling, screw piling or helical piling offers quick, easy and cost effective alternative for foundation construction.

Screw piles can be installed quickly with less noise and vibration by screwing them into the ground by applying rotational motion to it with hydraulic motors.

In the last decade, the application of screw piles has increased substantially in in countries like USA, Canada, Australia, New Zealand and Russia. Parts of South Africa, France and Spain are beginning to use it for making foundations. It's expected that the worldwide annual use of Screw Piles will double within few years from now.