DEWATERING

HOW DOES PROFESSIONAL DEWATERING WORK?

Many of the dewatering services that we provide are on larger projects or deep excavations. The majority of the time, deep wells are going to be the best method to remove excess water from the ground that can prevent water from pooling and stacking up on different areas of the site. It’s also a great method we use often because it brings no delay and we can get the work done on time.

Danbar utilise deep wells to control water levels. From what we create, the dewatering deep wells work as boreholes. This method consists of multiple wells being pumped at once to provide quick relief from excess water that’s building up and causing your construction site problems. Our industry- leading equipment is perfect for this strategy as more drilling and heavier equipment is needed to properly pump the water out on a mass scale.

Deep well systems use individual submersible pumps which are typically installed within the liner itself, close to the base of the well. This means that they can quickly and easily be installed and recovered by the riser pipe itself. One element of our strategies that we always ensure happens is situating the ground water removal wells just outside of the proposed areas of excavation. This ensures an efficient process and cleaner and clearer digging can commence. 

In the next stage of the dewatering process, our machinery then pumps the water from the deep wells which results in the formation of a hydraulic gradient. The impact of this then forces the water into the well efficiently and productively. As a result of this happening, the soil around your construction site is the subject to a cone of depression. The soil has now been effecively drained and water should no longer build up in excess. 

Thanks to our dewatering process, you’ll be left with the end result of a dry and safe excavation site that you no longer have to worry about for years to come. Not only is this safer for everyone on the site but it’s much easier in the long run to deal with any potentially wet surfaces.

HOW DO WE FORM DEWATERING DEEP WELLS?

Here at Danbar Drilling, we typically create dewatering deep holes through rotary drilling. Not only is rotary drilling a quick ,easy and reliable way to create a hole deep enough and wide enough to effectively control groundwater but it’s also less time consuming which means the project may well be completed sooner than you think. 

Of course, each excavation site is different and unique but it ultimately comes down to the geology, the location and the conditions around your site. These are often telling factors that let us know how long it will take and how difficult or simple the project will be. 

As technology and equipment is advancing, we are always keeping up to date with the latest equipment to improve our services and that’s why we take advantage of the latest biodegradable polymer mud flush which further helps speed the process and get the job done to a quality standard.

The size of the excavation site is not a problem to us as we can tackle any type of site with our dewatering services. Thanks to cable percussive rigs, we can install dewatering deep wells to the diameter that’s necessary to get the job done effectively and to make sure problems aren’t recurring in the future. In fact, we can drill deep wells of up to a 400mm maximum in diameter if it’s needed!

We can install wells using an open-hole drilling method and we will discuss with your beforehand about how deep you would like your boreholes to be. Our boreholes can be flexible in size – depending on what you request – but they can range anywhere between 10-50 metres.

On some occasions, ground water removal wells can be drilled to even greater depths, but that is largely dependent on the geology of the soil in question.