Large Scale Dredging Projects

Throughout the years a wide assortment of objective tests has been carried out to allocate prospective gold mining organizations to investigate an assortment of aspects of planned mining areas. These tests fluctuate depending on the planned technique of extraction. When it comes to dredges, particularly wheel excavator equipped dredges, the following tests for evaluation are essential: a full granularmetric curve which is delegate of the whole ore body is essential, especially if the body might have material that surpasses the capabilities of the dredge to excavate or convey; to produce the information adequately to show the granularmetric curve, test holes ought to be dug and all material from those test holes need to be sized, in general, the test hole or casing that is utilized to extract the samples need to be sized to fit in no less than the biggest ring size of the dredge pump that is going to be pumping the material; in the case of likely usage of a 14 inch (356mm) pipe size mining dredge for example, (1000 total installed HP and 150 HP on the excavator), a sample tube of no less than 12 inches in diameter needs to be driven, with all material kept inside the tube that is tested for measurement. This can be carried out by using a tube and auger testing mechanism. Except for the accessibility of this kind of equipment, test holes can be dug with a backhoe, dragline, or, if the soil conditions allow it, a front end loader can also be used. A test pit can also be dug by hand, however remember that a hand dug pit needs a correctly reinforced test hole.