1.0 Dewatering Dewatering is the removal of water from solid material or soil by wet classification, centrifugation, filtration or similar solid-liquid separation processes. Removing or draining water from a riverbed, construction site, caisson or mine shaft by pumping or evaporation. This is often done during the site development phase of a major construction project due to a high water table. Usually involves the use of dewatering pumps. Methods of dewatering include: Well Point, Deep Well and Eductor systems. Dewatering equipment dewaters sludge generated by ceramic manufacturing, porcelain and enamel fabrication, metal plating and finishing, chemical processing, steel mills, paint ...
Techniques and Developments in Quarry and Surface Mine Dewatering TECHNIQUES AND DEVELOPMENTS IN QUARRY AND SURFACE MINE DEWATERING M. PREENE Preene Groundwater Consulting Limited, 18 Berry Lane, Horbury, Wakeeld, WF4 5HD, UK. ABSTRACT Dewatering is essential for the safe and efcient operation of quarries and open pit mines that extend below groundwater level. Benets of dewatering include better working conditions and greater efciency of mining operations, as well as improved geotechnical stability, for example by allowing steeper side slopes. Dewatering techniques can be divided into two main groups (which may be used in combination). The rst group is pumping methods ...
PREDRAINAGE METHODS FOR TUNNEL DEWATERING Robert G. Lenz, Moretrench American Corporation STATE OF THE ART In most tunnel dewatering applications, the choice of de- watering systems comes down to the ejector well point or Tunnel dewatering, as it is practiced in the United States to- the deep well installed from the surface to effect partial or day, is partly art and partly science. Although removal of complete removal of water. The choice of the dewatering free water from a heading or from unlined stretches of a tun- tool revolves around the quantities of water to be pumped nel has always ...
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