Mining of Mineral Deposits

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Modeling the drainage facilities operation at the prospective construction site on the Dnipro floodland

V. Tymoshchuk1, Ye. Sherstiuk1, Z. Niedbalski2, Т. Morozova3

1Hydrogeology and Engineering Geology Department, National Mining University, Dnipro, Ukraine

2Faculty of Mining and Geoengineering, AGH University of Science and Technology, Krakow, Poland

3Physics Department, National Mining University, Dnipro, Ukraine

Min. miner. depos. 2017, 11(2):34-40

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      Purpose.To carry out predictive assessment of the hydrodynamic regime at the prospective construction site on the Dnipro floodland in order to choose an expedient drainage system and substantiate the drainage parameters.

      Methods. In studying the hydrodynamic regime, we used the method of variant modeling of three-dimensional filtration processes during the operation of various types of drainage and different drainage element layouts using a numerical mathematical model implemented on the basis of a finite differences method.

      Findings. The main mode-forming factors of the investigated territory have been determined using the results of analysis and generalization of the data related to geological structure and hydrogeological conditions. The general hydrodynamic scheme of the simulated area has been developed, the structure of geofiltration model has been justified, its initial and boundary conditions have been determined. Predictive estimation of groundwater level regime has been executed, comparative analysis of vertical and bed drainage efficiency with various schemes of drainage element layouts has been carried out by simulation. The efficiency of the drainage structures operation in the protected area has been estimated for high-level flood conditions at the set water level in the Dnipro.

      Originality. Patterns in the hydrodynamic regime formation of the Dnipro floodland have been determined under the influence of the main mode-forming factors in conditions of drainage operation.

      Practical implications. Of the work consist in substantiation of choosing the hydrodynamically expedient drainage system, the layout of dewatering constructions and drainage parameters for the site of the projected construction. The results of this research can form the basis for the development of the protective engineering measures in construction design at sites within potentially flooded river valleys.

      Keywords: hydrodynamic regime, geofiltrational simulation, groundwater regime prediction, drainage system, parameters of drainage dewatering


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