Asked by: Farhana Girolasked in category: General Last Updated: 2nd March, 2020
What is a Wellpoint?
Then, what is a Wellpoint system?
A wellpoint system consists essentially of a series of closely spaced small diameter water abstraction points connected, via a manifold, to the suction side of a suitable pump. The wellpoint technique is the pumping system most often used for modest depth excavations, especially for trenching excavations.
Likewise, how do you sink a Wellpoint? Use the well point method.
- Start a pilot hole. Using a post hole digger or shovel, dig a hole two feet deep.
- Install your well point. Well points are generally made of steel or any other hard metal so that they can withstand being driven deep into the ground.
- Begin driving the well point.
- Add each extension of pipe.
Similarly, you may ask, what is the difference between a borehole and a Wellpoint?
A wellpoint is a polyethylene pipe with a filtered end installed into a porous soil structure. A borehole is a shaft drilled to depths exceeding 20 metres with a large diameter casing allowing for the installation of a submersible pump to distribute the water.
What are the methods of dewatering?
The most common methods for dewatering include sumps, wells and well-points. 1) Sumps provide localized, very shallow dewatering (less than 3 feet) and consist of pumping from perforated drums or casings in a gravel-filled backhoe pit. Sumps work best in tight, fine grained soils, or very coarse, boulder deposits.