Micropile foundations only began to be recognized as a more efficient and sustainable alternative to helical piles quite recently. Thanks to new technological advancements in machinery, it’s becoming a popular option.
Sometimes referred to as rock anchors, micropiles are a type of pile capable of acting as a support structure. This means, it transfers the load from the building to the soil or the ground. As its name imply, micropile is small in diameter, compared to its counterparts, which make it more effective in the drilling process and keying into rock.
In situations where helical piles are not sustainable, as in due to several layers of rocks, micropiles come in. Like helical piles, micropiles offer the benefits of working well with tension and compression, speedy installation and little to no spoil generated during the process.
As previously mentioned, micropiles used to only be considered when helical piles are unsustainable. Sometimes, ground conditions warranted it because of considerations on time and cost.
Micropile service is slow, but is a better choice for some because of its low vibration and noise quality. Should your construction project be located in an area with specific policies on noise control, micropiling is the way to go. Areas with little space to move around with also call for smarter micropile application.
Other than having to comply to noise regulations and when drilling in congested areas, micropiles are ideal with shallow bed rocks, boulders and cavities, intermediate hard strata, and underpinning.
Your engineer could help identify other situations in which micropiles make the job and the process easier and faster for you.
The installation procedure for micropiles is similar with bored piling, which simply means it uses the drilling method. As a smart customer, it pays to know what your hired team of engineers is doing.
There are four steps to the micropile installation. The first step is when they proceed to execute drilling and flushing. After this, they will have to perform withdrawing the drilling string and then insert the steel reinforcement and grouting. The micropile installation is done.
It sounds technical, but it helps to pay attention to the service being done for you. Piling process is crucial, as it strengthens the soil on the ground so it is capable of supporting the stress and the load of the construction project. Making sure you get a quality micropiling service ensures your building stays erect and safe, no matter.