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Sump Pump Dewatering

ACTION offers simple but effective solutions to groundwater control problems,.

 

Sump pumping is the most straight forward dewatering technique whereby groundwater is allowed to seep into the excavation, collected in trenches and flows to the sump via gravity from where it is pumped away for disposal. Each sump is equipped with a robust pump which is capable of withstanding the sometime abrasive nature of the ingress water.

 

In favourable ground conditions sump pumping can be a very effective and economic method to achieve modest drawdowns. The technique can work well in well-graded coarse soils (such as gravelly sands, sandy gravels and coarse gravels) or in hard fissured rock.

 

However, in unfavorable ground conditions sump pumping can lead to major problems. Instability can occur in fine-grained soils such as silts and fine sands where fine particles are drawn out of the soil, resulting in ground movements and settlements - disposal of the water from sump pumping can also create problems, because pumped water may have a high sediment load, which can cause environmental problems at the disposal point - in any case, we have alternative solutions to meet requirement.

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