Drainage wells

In the case of washed gravel (with a fine matrix, or none at all), the flow rate of the wellpoint system may be insufficient in relation to the amount of groundwater.
In these cases it is necessary to use different drainage systems resorting, for example, to wells. The wells that we produce are mainly of three types:

WITH BRIDGE FILTER
Made from a calendered steel sheet which is punched to form small bridges with opening widths of between 0.8 and 3.0 mm;

WITH PIPE MILLED ON THE OUTSIDE
The pipe is milled to form openings of variable sizes for the passage of water;

BUCKET
The wells are made with concrete pipes generally 1,000 mm wide and with openings.

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