Well points are prepared at a distance of about 1m around the area to be excavated.
Well point dewatering procedure.
Procedure of well point system.
The ground water table is influenced by means of drawing it down through the well points spears that are installed around the excavation area.
Wellpoint dewatering is widely used for excavations of shallow depths especially for pipeline trench excavations.
Wellpoint method of dewatering excavations 1 a series of wells of required depth are created in the vicinity of the excavated area from where the water has to be pumped out.
The wells are arranged either in a line or a rectangular form where the wellpoints are created at a distance of at least 2m from each other.
In appropriate ground conditions a wellpoint system can be installed speedily and made operational rapidly.
The following procedure is adopted in the well point.