A complicated construction project may often last well over a year. During that time, work must continue every week to ensure that the project is finished on time and remains commercially viable. This can present some significant challenges associated with the weather and, specifically, rainfall. A contractor will certainly have to consider groundwater levels and make sure that excess run-off does not impede the work when footings need to be laid. What is the best way to control these water issues for your upcoming project?
Much at Stake
Let's face it, the project will not go very far unless you can keep water out of excavated areas and allow contractors to lay the foundation. This is especially complicated during the rainy season because the underlying water table will undoubtedly be high. The taller the building, the further down the excavation must go and the bigger the issue with water will be.
Testing the Soil
A lot will depend on the nature of the soil or underlying structure, and you will probably need to commission a geotechnical report first. You can then draw up a dewatering plan using the best approach for the situation.
If the ground is particularly hard, you may have to use the "open ditch" dewatering approach and use hydraulic pumps that can be submerged while lowering the groundwater level. A favoured solution is to use a wellpoint dewatering system, which is particularly effective if the ground is relatively hard. This system can be installed around the perimeter, and it is also quite cost-effective.
Installing the Wellpoint Solution
To install a wellpoint dewatering system, a series of individual wells are installed before being connected to a header pipe. This links to the wellpoint pump, which can then draw water up to the surface. Operators can adjust the push-fit valve to control the amount of water and air entering the system. They will then be able to clear away water from shallow foundations and trenches. This approach typically deals with various sands, from course to silty, gravel and everything in between.
Make the Decision
If you're not sure which type of water removal process to use, talk with a provider that has heavy construction equipment. You will certainly need to be aware of the underlying ground condition so that they can advise you appropriately and let you know if a wellpoint dewatering system is a right solution in your case. Contact a wellpoint dewatering system service near you to learn more.