Drainages Works Service
The drainages are generally defined as a temporary or permanent lowering of the level of the water into soils.
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On the basis of a lithological classification are:
On the basis of a lithological classification are:
- Drainage in Rock;
- Drainage in Soft Soil.
While the first use sophisticated and complex techniques to remove the water and their potential risk in the large engineering works and the exploitation of mineral deposits, the second most common techniques used with multiple objectives.
The drainage in the soils can be divided in:
Geotechnical drainage. Influence on groundwater to increase the strength of soils (consolidation) and stability (landslides, mudslides, etc.);
Agricultural drainage. Influence on groundwater to reclaim land and make them suitable for agriculture;
Drain standing. Collection of water by gravity drainage with special reticles below artefacts and works road;
Drainage relief. Temporary influence on groundwater for the construction of artefacts and works of engineering that require excavation below the level of surface groundwater
The technique of lowering the groundwater level is broken by vertical Ital Sonda by the installation of a series of horizontal drains (available with a radial or parallel) in a confluent well main collection in turn connected pumping station well defined point using this technique you can make a abbasamemnto constant slopes of the subsoil qule once put into operation, will cause a lowering of the water table creating the cone of influence depicted in a portion of land drained in the shape of inverted cone.
For the design of a system of drainage is of paramount importance to identify the hydraulic model of the subsoil, which can be reconstructed with the verification of the following characteristics:
- Stratigraphic conditions of the land concerned detected to a depth at least twice that of excavation
- Permeability of land affected by evidence collected in situ
Interdependence of groundwater with the surrounding hydrological conditions (water, pipelines, permanent drainage, etc..) and the logistics of the yard
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