Dewatering Foundation Excavations Purposes

Purpose of Construction Site Dewatering

A suitable construction dewatering plan is necessary for keeping the project within budget and complete on time. While the construction site dewatering is costly and time-consuming, but it is necessary to remove and reduce groundwater. In this, a professional environmental compliance consultant can help.

Removing groundwater from the construction site is important to keeps the workplace safe and protects the materials at the same time. The proper dewatering plan should be prepared to utilize in compliance with best management practices.

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Prevent Groundwater or Soil Leakage If leakage occurs in the construction site excavation area, then it will create danger and can lead to element failure. Some important elements are used to support the foundation wall.

Hence, it is important to dewater the excavation areas to avoid this.

Prevent Sand Boiling When excavation is carried out in gravelly or sandy soil construction sites, make sure that the groundwater level will be lowered to at least 0.6 meters.

If this happens, then there will be major differences in the groundwater level between the inside excavation and outside the excavation area. If the differences reached the hydraulic gradient of soil, then sand boiling would occur. Sand boiling prevention is necessary to consider. pn

Prevent Basement Floatation The construction of the basement starts after the excavation process is completed. It will be possible that the basement to experience floatation during the initial stage of the construction. At this stage, the weight of the basement might be lower.

Prevent Upheaval Failure The groundwater pressure from the layer will pressure the soil layer when the excavation is performed in clay soil construction sites. If the groundwater pressure overcomes the weight of soil layers, upheaval failures will occur. To avoid that failure, it is necessary to lessen down the piezometric pressure of the permeable layers.

If you are living in New York and looking for an experienced and insured environmental compliance and consulting services provider, you can rely on AAA Group. pn