In most construction environments, if a pile needs to be placed, it is usually drilled directly into place. In some instances, you cannot do this. In those instances, you use pre drill pilings. With these pilings, a hole is drilled with an auger or similar tool, then the piling is pushed into place instead of being inserted with a drill. If you are working in an area where noise restrictions do not permit you to drill, this is a viable option. Drills are loud, and can generate a lot of noise when drilling steel pilings into the ground.
In residential, historic or some business districts, there are regulations regarding the amount of noise that is permissible, even on construction sites. If there are laws that regulate construction zone noise, pre drill pilings may be a better alternative. The auger makes little noise, so it makes creating the hole much easier. After drilling, the pile goes into the hole. The entire process is quieter than if it were done with a standard drill procedure. When a construction crew needs to get the job done, there are little concerns about noise with pre drill pilings.
It is also an ideal choice when the ground is not necessarily stable. A drill causes waves of vibration through the soil and the rock beneath the surface. If the ground is unstable, those vibrations can result in serious damage to the property, including the risk of rockslides, landslides or crumbling soil. Because the auger moves in circular motions, it will only disturb the soil where you have targeted it. This preserves the stability of the surrounding area.
When you are working in an area where piles need to be placed and the area is hard to get to, pre drill piling may be a better way to go. In most cases, piles are installed during new construction, and the foundation is placed over them. If you need to support an existing structure, this is not as easy to do. It is best to use a pre drill piling in this case, because it is easier to tell how deep the auger has gone, which ensures that you are placing it in the right place and at the right depth. Over drilling in these instances can result in a lopsided foundation. If you misjudge where the pile is, you may strike the foundation and cause it to crack.
If your home was built on a shoreline, or you find that the soil beneath your foundation is starting to erode or shift, you may want to consider the benefits of these pilings to reinforce the foundation and keep your home level. A level foundation is essential to keep your home’s walls and roofing from cracking or separating. If you believe that your home’s foundation needs to be supported and reinforced, talk with a construction contractor or a foundation repair specialist who can evaluate the soil conditions and help you determine whether these pilings are the right tool for your needs.
The main concern when you opt for pre drill pilings is whether there you can obtain sufficient leverage to gain the necessary compression for the auger to drill the hole that you need. If you are placing the piling in an area that is hard to access, you may not be able to get the force behind it that you need. This can make the process longer, more difficult and potentially risky. Make sure that the hole is sufficient depth before you place the piling so that you do not cause further damage to the foundation and the structure above.