We are a leading national project management and building contractor based in Chennai, South India

We are a leading national project management and building contractor based in Chennai, South India

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ABOUT US The process of dewatering is done to remove the residual water in the site before proceeding with any site work. It is a crucial process in order to seal penetrating of unnecessary water into the surface.

Most of the time the process of dewatering is performed by using pumps to remove water from excavation site. It is done to take care of the lower water table that might be causing problems during excavations.

Dewatering can also be known as the process of removing water from soil by wet classification. It is the process of lowering the water table level at around a particular location in the contract site.

VISION & M I S S I O N Be responsive to customer needs, delivering optimal solutions and valueadded services.

Adhere to fair, transparent and ethical practices in interactions with all stakeholders.

Remain flexible and agile, continually adapting to the changing business environment. Foster a culture of mutual trust, respect, teamwork, continuous learning & innovation.

DEEP WELL DEWATERING The deep well system forms a large number of bored wells in the site area where the water is excavated by submersible pumps. Whenever the water is pumped out it creates a dry patch in the well making it level and creates a cone of depression or drawdown around itself.

There can be multiple wells which can lower the groundwater level over a wide area beneath an excavation. Since this method does not use a suction principle, large drawdowns can be achieved, limited only by the depth of the wells, and the hydrogeological conditions. Such systems are more powerful for a wider area with optimal numbers of wells and pumps.

SURFACE DEWATERING Surface dewatering system enable one to lower the groundwater table adequately in cohesive and low permeable soils. Water is pumped off directly from sumps (ditches) along the toes of the slopes of the excavation works.

The suction hose with strainer is merely placed in the sump and the collected water is primed and discharged. This makes the open dewatering system easy to install and simple to operate. The open dewatering system utilizes self priming and vacuum assisted centrifugal pumps.

WELLPOINT DEWATERING 1. Wellpoint systems are used to lower groundwater levels to provide stable working conditions. They consist of a series of small diameter wells that are connected by a header pipe to a wellpoint pump.

2. The pump creates a vacuum in the header pipe drawing water up from the ground. Welpoints are typically installed along or around an excavation.

3. The height to which water can be drawn by vacuum in this way is approximately 6 metres.

4. To function at greater depths, well points can be installed in stages as the excavation proceeds.

OUR SECTORS we have never had a negative review from a customer on our project and One of the most recognized and sought-after dewatering companies in the country

Basement

Ports, Canals & Marine

Infrastructure

Shafts, Tunnels and Pipelines

Bypass & overpumping

Underground Rail & Metro

OUR

CLIENTS

Do you have any questions? www.globaldewateringinternational.com +91 9840889926 No.5/33, Bala Foundation, Ayappanthangal, Ch - 56

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