Lustyuk M. Theoretical and applied basics of amber extraction with the mechanical and hydraulic method

The dissertation deals with solving the problem to create theoretical and applied basics of the mechanical and hydraulic technology for sampling and extraction of amber that is incorporated by the idea to combine technique and technology on stages of storage evaluation, projecting, and trial and industrial exploitation of deposits. Theoretical approaches to study interaction between the work agent and amber-bearing rocks are based on physical processes induced by the submerged jet. Study-ing the dynamics of hydraulic destruction of amber-bearing rocks enables separating three phases with different channel sizes and extraction rates. The maximum of min-erals transportation efficiency with airlift is reached by using the air separator of plate type. Evaluation of amber reserves in deposits with using possibilities of discrete and continuous kriging includes searching for the best amber content in an estimated block prospected by mechanical and hydraulic sampling while working out the ex-traction rooms ofproper size. The complex for mechanical and hydraulic sampling and extraction of amber was developed and tested under industrial conditions. The technology is grounded to work out the easily washed away rocks with disintegration of knocked off and stored minerals. The knocked off pieces are disintegrated in closed space using accumulation and deflation effects modelled mathematically. Syn-thesis of phases and stages while working out a deposit was demonstrated graphically in the system BURSHTIN. The classification system for mechanical and hydraulic sampling and extraction was developed by synthesis of available studies. The effect of technology implementation on the Klesiv deposit reaches 700,000 Hrn.