Tag: hydrostatic level

Preliminary study of the phreatic waters at the confluence of Cerna and Olteț rivers, getic piedmont (Romania)

Constantin ENACHE Oana MITITELU-IONUȘ
Abstract

In the Olteț floodplain, the alluvium contains a small-thickness aquifer phreatic, consisting of small pebbles and sands remodelled from the deposits brought by the upstream river; these are store rock suitable for significant groundwater accumulation. The research used hydrogeological data made available by the Olt Water Administration (12 observation wells) and its own measurements made between October 2017-May 2018. The observation drillings, taken into account, are located on a West-East alignment, located after the confluence of the Cerna River with the Olteț River within the area of Bălcești-Băbeni-Otetelișu localities. At the Cerna-Oltet confluence, the hydrostatic level of the groundwater aquifer is at depths between 187.43 cm – F1 Oteteliş and 179.44 cm – F3 Bălceşti (average multiannual for the period 2007-2016). The analysis of the lithological columns and the measurements of the hydrostatic levels in the observation wells led to the highlighting of the location of the drilling on hydrogeological sections and to the drawing of the variation of the hydrostatic levels of the hydro-hips map. The results obtained from the measurements on the hydrostatic level from 3 wells located in the study area between October 2017-May 2018 were corroborated with the specialized literature, more exactly hydrological and climatic research. Consequently, the present study confirms and explains the contribution of groundwater from the meadow to the flow of the Olteţ and Cerna Rivers in the confluence sector.
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The temporary lowering of water level from the phreatic of Jiu river meadow in the western area of Craiova municipality. Case study: West Gate Mall

Constantin ENACHE, Oana IONUŞ

Abstract: In order to carry out the foundation of WEST GATE MALL establishment, because the phreatic water level proved to be 1-2 m higher than the geotechnical study preestablished one, it was necessary its temporary lowering. For this problem to be solved we have suggested a double series of drillings with submersible pumps and between these foundations could be safely executed. Thus, according to our calculations presented in the article, the distance between the series of drillings has been established at 20 m, the dislevelment in the drillings reaching 4 m.

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