Abstract
The problem of developing underground water deposits is particularly relevant at the moment. The existing method of opening aquifers by drilling vertical wells is ineffective in terms of water yield in relation to the amount of drilling activity, material and labor costs. A system for opening and extracting underground water by the injection-forced self-discharge method is proposed, based on the use of internal energy of aquifers and the physical principles of water withdrawal (injection) and lifting to a height (hyd-ram). Structurally, the system consists of an injection and a water-lifting well connected by a smooth bend at depth and oriented towards the attitude of aquifers. The system is equipped with a cascade of a hydrojet device designed to implement the effect of injection and a hyd-ram, as well as a water return tank. The initial hydrogeological prerequisites for extracting underground water by the injectionforced self-discharge method were established, and the conditions and means of creating a system of communicating wells were determined. The design parameters of the hydro-jet device cascade and their purpose were specified. The system technical capabilities test was carried out on a test-setup designed in accordance with the research objectives and the physical principles of modeling hydraulic phenomena. A series of experiments recorded the dependence of the injection coefficient on the gravitational water yield coefficient at different working water flow rates. Information is given about the advantages of the proposed system for extracting underground water by the injection-forced self-discharge method in comparison with the traditional method of exploration and development of underground water deposits.
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