Abstract
The article deals with the results of exploration of precious metal placer sands with high clay content in Pospelihka settlement, Primorsky Krai. Sands of the gold placers under study have proved to be difficult to disintegrate because of iron oxides and clay minerals of a montmorillonit group. The behaviour of elastic characteristics of the sands under water saturation conditions has been determined with the help of experimental analysis. The article presents data on the water saturation effect on difficult-to-wash clay sands to ensure further desintigration. The authors propose an assessment of the water-saturation effect at high-clay sands mining based on the elasticity dynamics calculation. The article considers a method of the sand-desintigration preparation control allowing for the proposed dynamic sand characteristics under water saturation conditions. The authors note that exploration of this area of focus, including pilot and analytical studies, requires further development.
Keywords
Water saturation, elemental composition, phase analysis, wave impedance, disintegration, ultrasound speed, longitudinal tensile module, elasticity dynamics.
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